题目内容
I insisted that the boy his hands before having supper.
| A.washes | B.washed | C.had washed | D.(should) wash |
D
考查动词insist坚持要求,后跟从句用(should )do ,j句意:我坚持要求这个男孩应该吃饭之前洗手。所以选D。
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