If nothing________，the oceans will turn into fish deserts. (2013·湖南，26)
#99430
A
does
B
had been done
C
will do
D
is done
推荐题目
— The floor is dirty.— Yes. It _______ for two days.
#99920
A
hasn’t swept
B
didn’t sweep
C
hasn’t cleaned
D
hasn’t been cleaned
---Do you often watch this kind of program? ---No. This is the first time I ____ this kind. It’s funny.
#103192
A
watched
B
watch
C
have watched
D
had watched
The student’s behavior cost the teacher a steepless night . He never thought his student ______ computer games for a whole class .
#103119
A
played
B
was playing
C
had been playing
D
would play
The timetable says the school bus _________ here for the first trip at 6:30 am.
#101824
A
will leave
B
left
C
is leaving
D
leaves
The workers ___ busily when the boss came to look for something she ___ in the office.
#103985
A
had worked; had left
B
were working; had left
C
working; had left
D
had worked; left