John regretted ________ to the meeting last week.
A: not going
B: not to go
C: not having been going
D: not to be going（A）
A: not going
B: not to go
C: not having been going
D: not to be going（A）
举一反三
- John regretted _______ to the meeting last week. A: not to be going B: not having been going C: not to go D: not oing
- Mary regretted_____to John’s birthday party last Sunday. A: not going B: not to go C: not having been going D: not to be going
- Mary regretted _________to John‘s birthday party last Sunday. A: not going to B: not to have gone C: not to be going D: not go
- This project is known to () for three months. A: having been going on B: go on C: have been going on D: be going on
- This project is known to ______ for three months. A: A. having been going on B: B. go on C: C. have been going on D: D. be going on