There      serious air pollution if people use more and more cars.
#36558
A
has
B
will be
C
will have
D
are going to be
推荐题目
The car ___________ me nearly $30,000.
#40204
A
spent
B
bought
C
cost
D
took
—Where is your mother, Rita? --___________________. 
#37826
A
She has been to Wu hu.
B
She’s going to the old people’s home
C
She’s gone to work
D
She’ll go shopping
 -___ __ you ____ _ your drawing? -Not yet. It will be done in a few minutes.
#37655
A
Did, finish
B
Will, finish
C
Do, finish
D
Have, finished
I would like to buy the black pen because I ___ that kind of pen ____ well. 
#39870
A
have told; writes
B
have been told; writes
C
was told; wrote
D
have been told; is written
—Hi, Jack. Did you go to Lucy’s birthday party? —No, I felt so sad. I_______then.
#39368
A
didn’t invite
B
hadn’t invited
C
am not invited
D
wasn’t invited