Even if he were here, he could not solve the problem.
Even if I had bee n busy the n, I would have helped
you.
Choose the best an swer:
It is stra nge that the little boy speak two foreig n Ian guages.
A. could b. can C. should D. would
2. He gave orders that the experime nt before 5:30pm.
A. be fini shed
B.will finish
C. must be fini shed
3. He ____ you more help,eve n though he was very busy.
A, might have give n B. might give C .may have give n
4. Without the leadership of the Party,there no New Chi na.
A.would be
B. has bee n
C. should be
D.was
5. He is talk ing so much about America as if he there.
had bee n B. has bee n
C. was
D. has gone
6. The young man in sisted that he _ no thi ng
wrong and ______ f ree.
A. did; set
B. had done; should be set
C. should do; be set
D. had done; must be set
7. Had you liste ned to the doctor, you a ll
right now.
are B. were C. would be
D. would have bee n
8. You _____ come earlier. The bus left a mome nt
ago.
A. would
B. should have
C. may
D. have
表示一种让步语气， 即使…也做不成某事。

表示现在的情况，应用过去式
表示过去的情况，应用过去完成时态
CAAA ABCB。