Mark the letter A, B, C or D on your answer sheet to indicate the sentence that best combines each pair of sentences in the following questions.
A waitress served us. She was very impolite and impatient.
A. A waitress, who served us, was very impolite and impatient.
B. A waitress, which served us, was very impolite and impatient.
C. A waitress who served us was very impolite and impatient.
D. A waitress whom served us, was very impolite and impatient.
Đáp án A
B. Sai vì which không thay thế từ chỉ người
C. Sai vì “a waitress” đã xác định
D. Sai vì whom không thay thế từ ở vị trí chủ ngữ