______ book on the desk is ______ useful one．（ ）
| A． |
The； an |
B． |
A； an |
C． |
The； a |
You'd better keep the medicine somewhere safe，out of the children's （ ）
| A． |
hand |
B． |
reach |
C． |
hold |
D． |
place |
It's a top secret．
Yes，I see．I will keep it you and me．（ ）
| A． |
between |
B． |
around |
C． |
among |
D． |
with |
I don't care how other people feel？
Well，in fact you （ ）
| A． |
might |
B． |
could |
C． |
would |
D． |
should |
Why are you smoking so much these days？
Sorry．I just can't help （ ）
| A． |
you |
B． |
them |
C． |
it |
D． |
one |
He promised to come to see you．
But he ．I've been atl alone．（ ）
| A． |
doesn't |
B． |
isn't |
C． |
hasn't |
D． |
won't |