This nationwide smog should serve as a reminder to all, indicating a high time that we ______ on what we've done to the environment. 
#86609
A
have reflected
B
are reflecting
C
will reflect
D
reflected
推荐题目
The suggestion has been made___the basketball match___put off.
#89963
A
for; to
B
that; be
C
which; should be
D
to; being
 Don’t handle the vase as if it ____ made of steel.
#87352
A
is
B
were
C
has been
D
had been
The boss insisted that the task _______before 5 o’clock this afternoon.
#87164
A
was finished
B
finished
C
be finished
D
should finish