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
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How nice it _______ if I _______ an elder brother like you!   
#87603
A
was; had
B
would be; had had
C
would have been; had
D
would be; had
—Don’t forget to take the message to my teacher.—_____.
#90151
A
Yes, I will
B
No, I won’t
C
I don’t’ think so
D
Sorry, I don’t
There ia no light in the room. They ___ asleep.
#88909
A
should have gone to
B
must be
C
could go
D
might be going
—I knocked but nobody answered the door. ----They _____asleep then and didn’t hear you.
#88169
A
must be
B
should be
C
must have been
D
should have been