--Kangkang, has your homework been finished yet?
--Yes, mom. I __________ it half an hour ago.
| A．finish | B．finished |
| C．have finished | D．will finish |
The city has improved a lot _________ I came here a few years ago.
A. for B. since C. before
Kangkang has learned over ________ English words for two years.
A. five thousand, eight hundreds and sixty-five
B. five thousands, eight hundred and sixty-five
C. five thousand, eight hundred and sixty-five
—________ the population of the world?
—It _________ about 6.8 billion.
A. How many, is B. How much, is C. What’s, is
_______ I had no time to travel, I still felt very happy.
A. Though B. But C. So
—How often do I need to feed the fish?
－They food every day, or they will be hungry.
| A．must give | B．mustn’t give | C．mustn’t be give. | D．must be given |