Lucy, can you tell me_______—Sorry, I don’t know.

It’s a warm day, isn’t it?—-Yes, it is _______ cold I just wear a jacket

At the meeting，all the people were deeply________with her brilliant report

Cathy spent her summer vacation in reviewing her lessons _____ she would achieve marks in the coming examination.

Mr Smith is always on time for everything How________ it be that he was late for the flight