— Susan, would you like to go hiking with us this afternoon?— I'd love to, but I study for a test.A. may B. have to C. can
They think seaweed food is food for_____________.A. healthy B. health C. healthily
The number of students __________fifty.A. is B.are C.be
In many countries, people have birthday cakes_________candles.A. in B. with C.for
There_________some meat in the shop.A.are B. be C.is
They played __________badminton yesterday.A. 不填 B. a C.the