Your son has kept _______ for two hours. You"d better ask him to have a rest. [
题型：北京模拟题难度：来源：
| Your son has kept _______ for two hours. You"d better ask him to have a rest. |
| [ ] |
A. study
B. studied
C. to study
D. studying |
答案
| D |
举一反三
| Today, more and more people enjoy ____ things online. |
| [ ] |
A. buy
B. bought
C. buying
D. to buy |
| They"re busy ________ ready for the next week"s English test. |
| [ ] |
A. get
B. to get
C. getting
D. got |
—Tom, when shall we take a walk?
—After I finish _______. |
| [ ] |
A. writing
B. to write
C. wrote
D. written |
| I enjoy ______ television. It"s relaxing. |
| [ ] |
A. watching
B. to watch
C. watch
D. watched |
| Would you mind _______ slowly? I can"t follow you. |
| [ ] |
A. speak
B. to speak
C. spoken
D. speaking |
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