I"m tired out. I _____ all afternoon and I don"t seem to have finished anything.
题型：月考题难度：来源：
| I"m tired out. I _____ all afternoon and I don"t seem to have finished anything. |
A. have been shopping
B. shopped
C. have shopped
D. had shopped |
答案
举一反三
| The number of foreign students attending Chinese universities rising steadily since 1997. |
| [ ] |
A. is
B. has been
C. are
D. have been |
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