Class Two ____ taking their lessons when there was a knock at the door. [ ]A
题型：专项题难度：来源：
| Class Two ____ taking their lessons when there was a knock at the door. |
| [ ] |
A. is
B. are
C. was
D. were |
答案
| D |
举一反三
| His selected Poems ___ first published in 1965. |
| [ ] |
A. were
B. was
C. has been
D. is |
| It ____ Jim and his wife who gave me help when I was in trouble. |
| [ ] |
A. were
B. was
C. are
D. is |
| Nobody but Mary and Tom ____ late for school that day. |
| [ ] |
A. are
B. is
C. were
D. was |
| The police ____ the murderer everywhere when he suddenly appeared in a theatre. |
| [ ] |
A. is searching for
B. were searching for
C. are searching for
D. was searching for |
| ________ be a history teacher? |
| [ ] |
A. Did she used to
B. Does she use to
C. Did she use to
D. Does she used to |
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