We need clean air and water，so we protect the environment．（ ）
| A． |
can |
B． |
may |
C． |
must |
D． |
might |
____ Lucy____ Alice can go dancing with you，because they must stay at home on school nights．（ ）
| A． |
Neither； nor |
B． |
Either； or |
| C． |
Both； and |
D． |
Not only； but also |
You ____ to the party，why didn't you go？
I was going to．But I had to study for the test．（ ）
| A． |
be invited |
B． |
were invited |
| C． |
are invited |
D． |
will be invited |
They didn't play volleyball the day before yesterday．____？（ ）
| A． |
do they |
B． |
don't they |
| C． |
did they |
D． |
didn't they |
Will his new science fiction____ in September this year？
Yes．We are all looking forward to it．（ ）
| A． |
take out |
B． |
find out |
C． |
hand out |
D． |
come out |
Excuse me，do you know the way to the post office？
Yes．Follow me and I'll____ you the way（ ）
| A． |
call |
B． |
pick |
C． |
show |
D． |
give |