Scientists are trying their best to_______ ways to treat the terrible disease caused by Ebola(埃博拉).
The girl is too young to __________ herself. A. look for B. look at C. care for
Flowers _________ along the road last year. A. planted B. are planted C. were planted
This second-hand computer is much ________ than that new one. A. cheap B. cheaper C. cheapest
— Finish your homework, ______ you can’t watch TV, Jack. — All right, Mum. A. or B. but C. and
—Don’t make too much noise. —_______________. A. Yes, I do B. No , I don’t C. Sorry, I won’t