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  3. We wish the work could ______ more quickly, but we’d had some difficulties in getting the right kind of supplies.

We wish the work could ______ more quickly, but we’d had some difficulties in getting the right kind of supplies.

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问题 We wish the work could ______ more quickly, but we’d had some difficulties in getting the right kind of supplies.
选项 A、have done
B、have been done
C、have been doing
D、be done
答案B
解析 对过去情况的虚拟，且表被动关系，故选B。
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