The volunteer work __________ us five hours every week.[ ]A. spendsB. takesC
题型：同步题难度：来源：
| The volunteer work __________ us five hours every week. |
| [ ] |
A. spends
B. takes
C. costs
D. wastes |
答案
| C |
举一反三
| After ten years of research, he finally _______a new kind of camera. |
| [ ] |
A. discovered
B. invented
C. found
D. made |
| She _ that someone put a card and some sweets on her desk. |
| [ ] |
A. noticed
B. looked
C. watched
D. seen |
| Chinese _____chopsticks____ have meals. |
| [ ] |
A. use; to
B. are used; to
C. use; with
D. are used; for |
| If you think it isn"t sweet enough, you can _ some sugar _ it. |
| [ ] |
A make, on
B. leave, in
C. keep, in
D. sprinkle, on |
| After ten years of research. he finally ______ a new kind of camera. |
| [ ] |
A. discovered
B. invented
C. found
D. made |
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