Social attention should be paid our earth from .
#102039
A
to prevent; being polluted
B
to preventing; polluted
C
to prevent; polluting
D
to preventing; being polluted
推荐题目
A local radio station said that several eruptions _____ in the past twenty years.
#101916
A
had been taken place
B
took place
C
have taken place
D
had taken place
By the time he arrived in Beijing, we _______ there for two days.
#102534
A
will have stayed
B
stay
C
have been staying
D
had stayed
The project alongside with the experiment we had once devoted so much time ______ perfectly.
#99849
A
to work out
B
to working out
C
to worked out
D
has worked out
A good film producer must make sure that his films ____ fit into the needs of the changing market．
#101330
A
are to
B
will
C
are going to
D
are about to
--May I speak to your manager at four o’clock this afternoon?--I’m sorry. He ________ to a conference long before then.
#100396
A
will have gone
B
had gone
C
would go
D
has gone