Sorry, I’m late, Mrs. White.—__________ here on time next time.
Why do you look worried?— Because what I am really concerned about is _____my friend can do me a favor or not.
The rescue team didn’t leave until they were able tofind no ______ of life in the ruins after the destructive quake.
Do you know ________— All of them ________ the museum.
It is already well understood causes the global warming