题目

高二英语的问题
1.Sales of CDs have greatly increased since the early1990s,when people_____to enjoy the advantages of this new technology.
这道题答案是began,但答案为什么不是had begun呢?
2.过去完成进行时和过去完成时怎么区分啊?
3.He kept looking at her,wondering whether he____her somewhere
A.saw B.has seen C.sees D.had seen
请帮忙选一下正确答案并解释为什么...但之前请先翻译一下这句话
4.She is the only one of the girls who___in the country.
A.is well paid B.are well paid C.is paying paying well D.are paying well
要求同“3”
5.--The last one___pays the meal
--Agreed
A.arrived B.arrives C.to arrive D.arriving
要求同“3”

提问时间：2021-03-13

答案

1,因为题目上说了since the early 1990s,说了具体时间,用过去式.2,过去完成进行时,是说明从过去到过去某个时间一直在做的事,had been doing sth.；过去完成时,是说明在过去已经完成的事,had done sth.3,他保持看着她...