To keep our city clean and beautiful the are always very busy in the street．
They should be respected by all the people．（ ）
| A． |
drivers |
B． |
postmen |
C． |
firemen |
D． |
cleaners |
When he school，he saw his classmates playing volleyball．（ ）
A．arrivedB．got toC．reach
Our school has fifty﹣six teachers．（ ）
A．womanB．womenC．woman's
His grandparents are used in the morning．（ ）
A．to exerciseB．to exercising
C．exercise
cold weather it is!（ ）
A．How aB．What aC．What
There a pencil and some pens in the box．（ ）
A．isB．areC．aren't