I’d like the old people some housework.
A. help；do B. to help；doing C. helping；doing D. to help；do
Now I spend time _____ what I love to do.
A. to do B. doing C. do D. did
I had trouble the problem.
A. to work out B. work out C. worked out D. working out
Although their parents work in faraway cities to make money, those stay-home children(留守儿童) can ______ themselves
A. get out of B. care for C. come up with D. fall down from
I always tell my students ______ on the road because it’s really dangerous.
A. not to play B. to play not C. not playing D. not play
---- The supermarket tried hard to improve customer’s________ last year.
--- Yeah, they did it. A lot of people come here to buy things now.
A. trouble B. satisfaction C. risk D. interest
