题目列表(包括答案和解析)
- --Has Peter handed in his paper yet?
---I’m not sure. He _______ on it last week.
A. was working B. has worked C. worked D. had worked
--Has Peter handed in his paper yet?
---I’m not sure. He _______ on it last week.
A. was working B. has worked C. worked D. had worked
--Has Peter handed in his paper yet?
---I’m not sure. He _______ on it last week.
A. was working B. has worked C. worked D. had worked
--Has Peter handed in his paper yet?
---I’m not sure. He _______ on it last week.
| A．was working | B．has worked | C．worked | D．had worked |
---Has Peter handed in his paper yet?
---I’m not sure．He _______ on it last week．
A．was working B．has worked
C．worked D．had worked
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