16.All planes will be checked.
17.I wanted to see.
18.Katherine has been eating at Bob's house every night this week.
19."Where did you get these old dresses?". "We found them in the old trunk".
20."What happened to the old mail carrier?" "He was sent to a new neighborhood to work".
21.The room is cleaned every day.
22.They cancelled all flights because of fog. b. All flights were cancelled because of fog.
23.People don't use this road very often. a. This road is not used very often.
24.Somebody accused me of stealing money. b. I was accused of stealing money.
25.How do people learn languages? a. How are languages learned?
26.People warned us not to go out alone. d. We were warned not to go out alone.
27.Somebody is using the computer at the moment. c. The computer is being used by somebody at the moment.
28.I didn't realize that somebody was recording our conversation. b. I didn't realize that our conversation was being recorded.
từ câu 16
c - b - d- c - c - c - b - a - b - a - d - a (use->used) - b - a - a - c - a - a - d - c - d - a - c - a
