Question

【题目】Temperatures________ quite dramatically at night in mountains, so put on some warm clothes before going out.

A. are dropped B. drop

C. are being dropped D. have dropped

Answer 1

【答案】B

【解析】

试题分析：考查动词的时态和语态。句意：夜间山里的温度急剧下降，因此一定要穿上暖和的衣服再出去。该句描述一种经常发生的情况，故用一般现在时，故选B。