More and more people can ________ over 100 years old in the future.
A. live for B. live in C. live to be D. live be
There will be _______ jobs for people because some robots will do the same jobs as people.
A. many B. more C. fewer D. fewest
If people keep ________ the river, there will be no fish in the river.
A. polluting B. pollute C. polluted D. to pollute
Please wait. She ________ to you in a few minutes.
A. talk B. talked C. have talked D. will talk
We love________．We don't like the war (战争)．
A. culture B. peace C. battle D. history
—Do you think that there will be more trees in the mountains? —________
A. I hope so. B. Yes，I hope not.
C. Oh，really? D. Yeah，there will be fewer trees.
