If  we ___________some measures, we might have prevented the environmental pollution.
#103274
A
take
B
had taken
C
took
D
have taken
推荐题目
 ---Why did Alice cry? ---She couldn’t stand ______like that before the whole class.
#100069
A
making fun of
B
being made fun of
C
to make fun of
D
being made fun
The toddler who miraculously ______ a fall from her 10th-floor home in Hangzhou, east China, ______ recovering quickly. 
#102527
A
is survived, is
B
are survived, are
C
survived, is
D
being survived, are
 I need one more stamp before my collection ______.
#104144
A
had completed  
B
completes
C
has been completed
D
is completed