The Great Green Wall can stop the wind sand to the rich land in the south of China.
| A．move | B．to move | C．from moving | D．moved |
It ________ me half an hour ________ to work every day last month.
| A．takes;riding | B．spent; to ride | C．cost; walk | D．took; to walk |
I think collecting stamps ________ the least time.
| A．takes up | B．puts up | C．gives up | D．makes up |
—Does Mary only have an apple for breakfast? —Yes, she eats like a bird to________.
A.wake up B.be strong C.lose weight C.fall asleep
You bought a new computer last week, _____ you?
| A．aren’t | B．don’t | C．didn’t | D．haven’t |
If he _____ on time, we will go without him.
| A．doesn’t come | B．don’t come | C．didn’t come | D．comes |