—How does Jack usually go to school?—He ____ ride a bike, but now he ____there to lose weight.
There are _______ people in the hall. A. hundred of B. hundreds of C.three hundreds
Humans will have ______ fresh air in10 years than now.
---____ are you going to keep healthy? ---I’m going to exercise more. A. How B. When C. What
–What about playing tennis this Sunday?-- _____. Anything is OK. A. I like it. B. I don’t mind. C. I can’t stand it.
–What will you do tomorrow?-I’m not sure. I _____ go shopping. A. will B. might C. must