_______ beef do we need to buy?
It is 9 a.m. When you meet your friend at school, you say “_____” to him or her.
You can get much about this film on the Internet.
There are stars in the Galaxy. They are far from us.
. —______ to the Shanghai?—No, never, but I went to Beijing a few years ago.
—How many students are there in the classroom? ____. They are all in playground.