We spent three hours ________ our homework. [ ]A. do B. in doing
题型：同步题难度：来源：
| We spent three hours ________ our homework. |
| [ ] |
A. do
B. in doing
C. to do |
答案
| B |
举一反三
| The boy was born ________ the 3rd of July, 1989. |
| [ ] |
A. in
B. on
C. at |
| We watched a movie ________ living in the future. |
| [ ] |
A. about
B. of
C. for |
| Chengdu is famous ________ FuNan River. |
| [ ] |
A. for
B. on
C. to |
| He was born __________ January 25th, 1981. |
| [ ] |
A. in
B. on
C. at
D. for |
| His brother was born __________ May, 1981. |
| [ ] |
A. in
B. at
C. to
D. on |
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