A woman was dug out after being buried deep in the ruins for more than 200 hours.
He gave the old couple a lot of money and didn’t expect to receive anything ______for them.
The math problem seems very easy, but in fact it is very difficult_______.
-----What did you think of Mount Tai? ------Wonderful. It’s worth ______once again.
In the past twenty years, the sad father has been to many places-______his lost son.
—Isn’t that Ann’s husband over there? —No, it ______ be him-I’m sure he doesn’t wear glasses.