It"s difficult ______ the old people ______ walk up the Great Wall. [ ]A. fo
题型：期中题难度：来源：
| It"s difficult ______ the old people ______ walk up the Great Wall. |
| [ ] |
A. for, for
B. to, to
C. for, to
D. to, for |
答案
举一反三
| He needs his room. |
[ ] |
A. to clean
B. cleaning
C. cleans
D. clean |
| It"s important a healthy lifestyle. |
| [ ] |
A. have
B. has
C. to have
D. having |
| Your mom and I decided _____ somewhere in China. |
| [ ] |
A. go
B. to go
C. to going
D. going |
| It took her two hours her homework yesterday. |
| [ ] |
A. finishing
B. finished
C. to finish
D. finish |
| My mother often encourages me ______ hard. |
| [ ] |
A. to work
B. works
C. working
D. work |
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