Some old houses ________ in my hometown last summer.
A. fall down B. fell down C. write down D. wrote down
We must look after our home—the earth，because its________is getting worse and worse.
A. water B. environment C. planet D. prediction
I love game shows. I hope one day I can ___one of them, answer all the questions and win a big prize！
A. play a part in B. play role in C. joins in D. take a part in
If people keep______the river, there will be no fish in the river.
A. polluting B. pollute
C. polluted D. to pollute
You can read all kinds of books ____computers in 10 years.
A. in B. on
C. at D. of
The sports meeting this year will come ________ four days.
A. on B. for C. during D. in
