填空题
It is important that your homework (do)
1
by yourself, otherwise, you would never know how to do it.
1、
【正确答案】
1、be done
【答案解析】
[解析] 自己做作业是重要的,否则你就不会知道怎样做。此句是主语从句中用到虚拟语气的被动形式。
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