1.Some passengers were walking through one of the big halls
3个回答

1 C When 译为:一些乘客正在...的时候,这时房屋倒塌了.习惯上用when

而while也是当...的时候,但多用于前后句子结构类似时.如:while I am reading ,he is sleeping.

as soon as “一..就...”如:I will tell you as soon as he comes back.(主将从现) after 在...之后,那主句就不该用进行时了!

2 B(选项中多打了个visit)

tell 后面接从句时 从句要用正常语序 即主谓语序.you 主语 谓语是

will visit