______ have we seen such an effective actor as he has proven himself to be.
A: Certainly
B: Sometimes
C: Rarely
D: Once
A: Certainly
B: Sometimes
C: Rarely
D: Once
举一反三
- ____ does he go in for sports. A: Seldom B: Once C: Certainly D: Sometimes
- ______<br/>he ______ this film yet? A: Is, see B: Have, seen C: Has, seen D: Does, see
- From the conversation we know that David and Bruce ______. A: have met only once B: have never seen each other before C: once worked in the same office D: were once business partners
- Nowhere ______ so many people planting trees. A: have we seen B: we have seen C: have seen we D: we saw
- He is not so simple as he makes_out to be. A: himself B: him C: he D: her