一How many students listened to the teacher carefully enough in the class? 一 .
I saw a boy_______in the yard.A. play B. playing C.played
I’d like a big bowl of noodles for 4yuan.A. of B. for C.to
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