(2013·高考湖南卷)If nothing________，the oceans will turn into fish deserts.
#99688
A
does
B
had been done
C
will do
D
is done
推荐题目
—Sorry，sir，your car isn't ready yet.It ________ by our workers.—Oh，my God，when can I come to fetch it?
#99748
A
is repaired
B
has been repaired
C
is being repaired
D
will be repaired
—I downtown to the shopping centre soon．Could I get you something?—No, thanks．I will do e-shopping．
#102484
A
was just going
B
am just about to go
C
have just gone
D
am just going
(2013·山东，27)—Oh no! We're too late.The train________.— That's OK.We'll catch the next train to London.
#99732
A
was leaving
B
had left
C
has left
D
has been leaving
If the weather had been better, we could have had a picnic. But it ____ all day.
#104057
A
rained
B
rains
C
has rained
D
is raining
By the time we reach that page, we ___________ twenty lessons of the book.
#102336
A
will study
B
will have studied
C
would study
D
have studied