— Can you guess _______ the new Nike sports shoes?
—Yes, maybe he asked his grandpa for the money, I think.
| A．how he paid for | B．where he bought | C．when he paid for | D．why he bought |
We know that about seventy percent _____ the earth _____ covered by water.
| A．/; is | B．of; are |
| C．of; is | D．about; are |
you drive,you will be.
| A．More carefully; safer; | B．The more careful, the safer |
| C．The more carefully, the safer. | D．The more careful, the safer |
The policeman asked the child ________ cross the street ________ the traffic lights turned green.
| A．not, when | B．not to, until |
| C．didn't, before | D．not to, after |
— I have great _______in finishing the work by myself. Could you help me?
— No problem.
| A．fun | B．success |
| C．advice | D．difficulty |
-How well she sings!
-Yes, she has a very sweet __________.
| A．voice | B．Sound |
| C．Noise | D．shout |