By the time he was twelve, Edison __________ to make a living by himself.
| A．would begin | B．has begun |
| C．had begun | D．was begun |
We're very _______ about the graduation ceremony next Saturday． We can't wait to be there．（ ）
| A． |
boring |
B． |
bored |
C． |
excited |
D． |
exciting |
Must I wear the school uniform on school days？
_______．It's one of the school rules．（ ）
A．It's beautifulB．I don't think so
C．I'm afraid soD．It fits you well
My mother often says， "Stand tall like the sunflower and be proud_ who you are． "（ ）
| A． |
of |
B． |
with |
C． |
at |
D． |
in |
_______ sport will you take part in， Peter？
The boys' 800﹣meter race．（ ）
| A． |
Where |
B． |
When |
C． |
Which |
D． |
How |
The earth is often called the ocean planet． Its surface is 70 percent ________． （ ）
| A． |
land |
B． |
plants |
C． |
animals |
D． |
water |