Question

【題目】________ the earthquake happened, most of the people ________ at home.

A. While; were sleeping B. When; slept C. While; slept D. When; were sleeping

Answer 1

【答案】D

【解析】句意：地震發(fā)生時(shí)，大多數(shù)人在家睡覺。when時(shí)間連詞，在…時(shí)候； while時(shí)間連詞，在…時(shí)候，引導(dǎo)時(shí)間狀語從句，從句的動作正在進(jìn)行。when從句的謂語動詞可以在主句謂語動作之前、之后或同時(shí)發(fā)生；while從句的謂語動作必須是和主句謂語動作同時(shí)發(fā)生,從句的時(shí)態(tài)常用進(jìn)行時(shí)態(tài)。故選：D。