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 |
I went to the hospital yesterday．I found a few ____there．（ ）
| A． |
man nurses |
B． |
men nurse |
C． |
men nurses |
A number of visitors _____visiting the West Lake and the number of the visitors _____increasing．（ ）
| A． |
are； is |
B． |
is；are |
C． |
are；are |
Books are our friends．_____do you read books？
I read books every day．（ ）
| A． |
How often |
B． |
How soon |
C． |
How long |
Today is my cousin's ____birthday．I am going to his birthday party tonight．（ ）
| A． |
nineteenth |
| B． |
the nineteenth |
| C． |
nineteen |
Our country is getting _____．We are proud of it．（ ）
| A． |
more and more strong |
| B． |
strong and strong |
| C． |
stronger and stronger |