21. ______ good, this kind of fruit sells very well in our city.
A. Taste B. Being tasted C. Tasting D. Having been tasted
22. The ______ look on his face suggested that he ______ that he would fail in the Maths test.
A. surprising; wouldn’t expect B. surprising; hadn’t expected
C. surprised; hadn’t expected D. surprised; shouldn’t expect
23. I think he must have seen me at the meeting last night, ______?
A. didn’t he B. don’t I C. do I D. mustn’t he
24. The Changjiang River has been polluted badly and is not good _______.
A. to swim it B. to be swum in C. to swim in it D. to swim in
