Do you know ______? Yes. It will take off at five.A. when the plane will take offB. when the plane took offC. when will the plane take off
—How do you study _________ a test? —I often study _______ a group.
This is ______ book. They like it very much.
______ his shoes under the bed?
There is a big supermarket near my house. It’s very easy _________ it.
The dress fits(合身) me well,_______ I don’t want to buy it because it’s too expensive.