【Ifyou___(notknow)theanswer,you'dbetter____(put)upyourhands.怎么写,急】
2021-12-25 60次 反馈错误 加入收藏 正确率 : 100%
题目内容：
If you ___ (not know)the answer,you'd better ____(put)up your hands.怎么写,急
优质解答
don't know,put
if主将,从现.you 一般现在时的否定句用：don't + 动词原形
had better do sth.最好做某事,所以用动词原形
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