问题

They were walking along the shore ________ a huge wave appeared out of nowhere, sweeping them out to sea.[ ]

A: as
B: while
C: when
D: though

正确答案是：

同类题型

There was no doubt ____ it was in the supermarket _____ I lost my wallet yesterday. [ ]

Sam sits_______ Kitty.” Which is wrong

DIY is very popular now. It means you don’t need to ______ anyone to do it.

If you feel tired and sick of fat food, that is ______ you have to go to the hospital for medical examination.

The new stadium being built for the next Asian Games will bethe presentone。