__________ is really hard __ them to climb such a high mountain.
A．This; toB．It; to
C．This; forD．It; for
We must _______ to help the out of trouble.
A．try our bestB．try your best
C．tryD．trying
Must I go to a medical school and be a doctor like you ,Dad?
No,you _______ .You’re free to make your own decision .
A．can’tB．mustn’t
C．shouldn’tD．needn’t
English isn’t as __________ as Chinese.
Maybe, perhaps it’s just because Chinese is your native language.
A．easyB．easily
C．easierD．easiest
What do you think of the price of gold in the world ?
Nowadays it is getting much __________than before .
A．lowB．lower
C．lowestD．the lowest
Excuse me.May I use your computer ?
__________. It’s broken .
A．SureB．Yes,here you are
C．With pleasureD．I’m afraid not
