—What’s your favorite subject? —My favorite subject is .
________ Tom ________ Mary speaks good Chinese, so they can communicate with these Chinese students very well.
The boy doesn't speak his sister, but his written work is very good.
I think ___is necessary ___ my 20-year-old daughter to have her own mobile.
I don’t know he will win tomorrow. I never doubt it will rain tomorrow.
Which of the following signs can NOT be found in a hospital?