4. Nobody has invited him to the conference.

A. He hasn’t been invited to the conference.

B. There has been an invitation to the conference

C. He hasn’t been invited to the conference.

D. He has been invited to the conference.

7. They believe that the best time to take a gap year is after leaving high school.

A. It is believed that the best time to take a gap year is after leaving high school.

B. It was believed that the best time to take a gap year is after leaving high school.

C. The best time to take a gap year is believed to be after leaving high school.

D. The best time to take a gap year was believed to be after leaving high school.

10. I need to clean my shoes.

A. Cleaning is needed for my shoes.

B. I need to have my shoes cleaned.

C. I have to clean my shoes.

D. My shoes need cleaning.