问题
选择题
| He ______ the job well, but he ______ so careless. |
A. hadn't done ; had been B. could have done ; was C. could do ; was D. had done ; had been |
答案
答案：B
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| He ______ the job well, but he ______ so careless. |
A. hadn't done ; had been B. could have done ; was C. could do ; was D. had done ; had been |
答案：B