—Excuse me，is this the right way to the bookstore？
—Sorry，I’m not sure．But it________be．
| A．can |
| B．need |
| C．must |
| D．might |
—Are these your English books? —Yes, ________.
| A．they’re | B．they are | C．these are | D．they aren’t |
--Can you play football? --Yes, I can, _______I can't play it very well.
A. orB. andC. but
Trees can stop the wind ______the earth away.
A. from blowingB. to blow C. blew
Kelly’s main job is _____ the message about protecting the environment.
A. helping spreadB. to help spreading C. to help spread
They are making too much noise here. Let’s go _______.
A. somewhere quietB. everywhere noisyC. anywhere noisy