____Tom___help his father in the gardon?---I'm afraid he have to

问题描述:

____Tom___help his father in the gardon?---I'm afraid he have to
A,Does,need B.Has,need to C.Does,have to D.Has,has to

答案:C
解析:have to 有人称和时态的变化,本句是一般现在时,主语是第三人称单数形式,所以用助动词does提问请问不能选D是因为have to只能借助吗?D项的助动词不对,应该用does,不能用has,has是现在完成时的助动词,本句是一般现在时,应该用does