Question

【题目】At first the girl __________ like math, but now she ___________.
A.didn't, did
B.doesn't, does
C.doesn't, did
D.didn't, does

Answer 1

【答案】D
【解析】句意：开始的时候这个女孩不喜欢数学，但是现在她喜欢了。根据At first可知用过去时态，因like是实义动词，否定句在动词前加didn't，谓语动词用原形；又根据now可知第二句用一般现在时态，主语是单三，谓语动词用单数形式，为了避免重复用does代替likes；故选D。