—Can I borrow your car?
—Well..., _______.
| A．if you must | B．if you need |
| C．if you can | D．if you should |
It is the idea____smiles can get rid of cold ____has been proved by the researchers many times.
| A．which; which | B．that; that | C．that; which | D．which; that |
After he retired, he keeps on taking exercise to kep fit______a good diet.
| A．except | B．in addition to | C．but for | D．other than |
Passengers are ______to look out of the window when the train is moving.
| A．forbidden | B．kept | C．prevented | D．banned |
Jane is honest and never tends to hide her opinion. She must give you a(n) _____suggestion about it.
| A．abrupt | B．ambiguous | C．straightforward | D．hesitant |
She is always smart and cheating others. I can't believe she was ____ by him this time, who is a little dull boy.
| A．taken up | B．taken down | C．taken in | D．taken on |