III

1, Where is she cooking meal

2, What would you like

3, What is Miss Lan doing at the secondnary school

4, How often does Nam fly kite

5, When you have Math and Literature

6, How often does he go to the cinema

7, What is your grade of your sister

8, What time does Mai always have dinner

9, What does your brother want

10, What does Linh have for her breakfast

chương trình mới hay cũ đó

chương trình ấn bản 2017 nhà xuất bản đà nẵng 

Hình ảnh con người chiếm vị trí nổi bật trên hoa văn trống đồng cho ta thấy: Khi làm ra trống đồng, dân tộc ta muốn thể hiện rõ ý thức làm chủ đất nước, ý thức lao động sáng tạo, ý thức hòa mình với thiên nhiên và niềm khao khát được sống hòa bình hạnh phúc.

số người học chỉ tiếng anh là:25-18=7 học sinh

số người học chỉ tiếng pháp laf27-18=9 học sinh

số học sinh trong lớp là 7+9+18=34 học sinh

a) x⁴+x³+2x²+x+1=(x⁴+x³+x²)+(x²+x+1)=x²(x²+x+1)+(x²+x+1)=(x²+x+1)(x²+1)

b)a³+b³+c³-3abc=a³+3ab(a+b)+b³+c³ -(3ab(a+b)+3abc)=(a+b)³+c³-3ab(a+b+c)

=(a+b+c)((a+b)²-(a+b)c+c²)-3ab(a+b+c)=(a+b+c)(a²+2ab+b²-ac-ab+c²-3ab)=(a+b+c)(a²+b²+c²-ab-ac-bc)

c)Đặt x-y=a;y-z=b;z-x=c

a+b+c=x-y-z+z-x=o

đưa về như bài b

d)nhóm 2 hạng tử đầu lại và 2hangj tử sau lại để 2 hạng tử sau ở trong ngoặc sau đó áp dụng hằng đẳng thức dề tính sau đó dặt nhân tử chung

e)x²(y-z)+y²(z-x)+z²(x-y)=x²(y-z)-y²((y-z)+(x-y))+z²(x-y)

=x²(y-z)-y²(y-z)-y²(x-y)+z²(x-y)=(y-z)(x²-y²)-(x-y)(y²-z²)=(y-z)(x²-2y²+xy+xz+yz)

I,
1. You ought to study harder this semester

2. I haven't seen him since 1985

3. How long have you learnt E?

4. I haven't played soccer since 1995

5. I will go to HCM city in order to meet my friends

6. They used to live in Paris when they were young

7. We have lived here for 15 years

8. He has studied E for three years

9. Would you mind if I used your bike?

10. It's verydangerous to go swimming in the river

11. Do you mind getting me a bandage?

12. Do you mind if I turn on the television?

II,

1. took-> take

2. so as to -> so as not to

3. buyed -> bought

4. take-> took

5. wanted -> want

6. did -> do

1. Would you mind if I turned on the TV?

2. Would you mind consetting this composition for me?

3. Do you mind if I take a photo of your study corner?

4. Do you mind if I give some advice on your study habit?

5. Do you mind playing the tape once more?

1. Do you mind if I turn on the TV?

2. Do you mind corecting this composition for me?

3. Do you mind if I take a photo of your study corner?

4. Do you mind if I give some advice on your study habit?

5. Do you mind playing the tape once more?

6. Do you mind if I borrow your dictionary?

7. Would you mind if I had a look at your homework?

8. Would you mind telling me how you learned English at school?

9. Do you mind if I use your computer for one hours?

10. Would you mind solving this math problem for me?

Bài của bạn hơi mờ nên hơi khó đọc xíu

82. He said that he had a toothache

83. She said that she would write him a prescription

84. They said that they were going to the drugstore

85. He said that the doctor had given him some pills

86. She said that she went to the supermarket everyday

87. He said that he had received the envelope

88. They said that they had visited Cannery Row

89. She said that she felt very sick

90. He said that he had bought some popcorn

91. They said that they were flying to California

92. He said that he was cutting off the main valve

93. He said, " I don't know what have happen "

94. She said , " I went to the dentist yesterday "

95. She said , " The doctor wrote her a prescription "

96. He said, " I have a toothache "

97. She said, " I go to the museum every day "

98. They said, " We are going to the supermarket "

99. She said , " The doctor gave me some pills "

100. He said, " I received the report "

101. They said , " We visited the aquarium "

102. He said , " I am feeling sick "

103. She said, " I bought some bread "

104. He said , " I am turning off the televison "

105. They said , " We drove to Chicago "

106. He said that If I were late the following day , he was going to fire me

107. The boy said that he hadn't broken that window

108. Hang said that he was going to change the wheel on her car herself

. He said that he had a toothache

. They said that they were going to the drugstore

. He said that the doctor had given him some pills

. She said that she went to the supermarket everyday

. He said that he had received the envelope

. They said that they had visited Cannery Row

. She said that she felt very sick

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