You'd better tidy up your room ____ your father comes back．（ ）
| A． |
so |
B． |
or |
C． |
before |
D． |
but |
I think e﹣books will more than paper books in the future．（ ）
| A． |
use |
B． |
be used |
C． |
used |
They want a football match．（ ）
| A． |
not watch |
B． |
watch |
C． |
to watch |
He this city when he was eighteen．（ ）
A．leavesB．doesn't leave
C．left
There a computer and some books on the teacher's desk．（ ）
| A． |
is |
B． |
are |
C． |
be |
We have lunch_____ school from Monday to Friday．（ ）
| A． |
on |
B． |
at |
C． |
with |