Question

【題目】The river is very deep. My mother warns me _________ in it.

A. swim B. not to swim

C. to swim D. not swim

Answer 1

【答案】B

【解析】

試題分析：句意：這條河很深，我媽媽警告我不要在里面游泳。swim游泳，動(dòng)詞原形；not to swim不要去游泳；to swim動(dòng)詞不定式；not swim不要游泳。這句話中使用的句型是warn sb. to do sth.警告某人去做某事，其否定形式應(yīng)在動(dòng)詞不定式前加not，故應(yīng)選B。