Eating vegetables maybe help you keep _______.
A. health B. healthy C. healthily
Everyone arrived on time ____ the traffic was so terrible.
A, if B. unless C. though D. because
-____ is it from your home to the supermarket? -About ten minutes’ walk
| A．How long | B．How far |
| C．How much | D．How many |
People ____ more and more useful things to protect the earth since Earth Day was started.
| A．did | B．were doing |
| C．will do | D．have done |
My father decided _____ any more.
| A．to smoke | B．to not smoke |
| C．smoking | D．not to smoke |
Many Chinese children have to take piano lessons, but few of them have ____ in it.
| A．duty | B．courage |
| C．experience | D．interest |