So difficult _______ that no one could ______ a good solution to it. [ ]A. w
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| So difficult _______ that no one could ______ a good solution to it. |
| [ ] |
A. was the problem; come up with
B. the problem was; come up with
C. the problem was; put up with
D. was the problem; put up with |
答案
| A |
举一反三
| Only when the war was over ____ to his home town. |
| [ ] |
A. did the young soldier return
B. the young soldier returned
C. returned the young soldier
D. the young soldier did return |
— How much do you know about the 3D film technology?
— A little. Not until _____ the hot movie Avatar ______some about it. |
| [ ] |
A. did I see; did I begin to learn
B. I saw; I began to learn
C. I saw; did I begin to learn
D. did I see; I began to learn |
| Nowhere else in such a small town, I think _____ a book as good as this one. |
| [ ] |
A. you get
B. you can get
C. can you get
D. you will get |
| Only after he had received the patent (专利) _______ to spend a day away from his lab. |
| [ ] |
A. had he decided
B. did he decide
C. that he decided
D. he would decide |
| From the picture we know, so happy ______that they are wild with joy. |
| [ ] |
A. the children feel
B. did the children feel
C. the children are feeing
D. do the children feel |
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