Put the verbs in the correct form.
6. Mary often ( go) __________ to work on foot .
7. Bad students never ( work) __________ hard.
8. They ( not be ) __________ doctors.
9. He (go) __________ to school yesterday.
10. Mary ( go) __________ to work last night.
6. goes
7. work
8. aren't
9. goes
10. goes
6.goes
7.work
8.aren't
9.went
10.went