Nobody can hear you______ you speak in a louder voice．（ ）
| A． |
unless |
B． |
if |
C． |
when |
D． |
after |
Nobody teaches Mary English． She teaches ______．（ ）
| A． |
her |
B． |
herself |
C． |
she |
Did you do _____ during the last summer vacation？（ ）
| A． |
something special |
| B． |
special something |
| C． |
anything special |
Bob has few friends in his new school, _____？（ ）
| A． |
hasn't he |
B． |
does he |
C． |
doesn't he |
What time is it？
It's half _____ seven．（ ）
| A． |
past |
B． |
to |
C． |
at |
We can't leave here until our teacher _____．（ ）
| A． |
will arrive |
| B． |
arrives |
| C． |
arrived |