Now most families have only one child _____ the one-child policy.A.becauseB.because forC.because of
---______ was your vacation? --- It _____ exciting.
There is ________ wrong with his eyes. He can’t see things clearly.
The English story is very easy for us because there are new words in it.
Mary practices Chinese every day, so her Chinese is good now.
I have quite friends. I feel very happy.