—Guess what? I happened to have met Mark at the party last week. —If my memory serves me correctly, you two ______ each other for almost ten years.
#101469
A
hadn't seen
B
haven't seen
C
didn't see
D
don't see
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During the period of recent terrorist activities, people _____ not to touch an unattended bag.
#103992
A
had always been warned
B
were always being warned
C
are always warning
D
always warned
 I know Mr. Brown; we ______ to each other at an international conference.
#104101
A
are introduced
B
are been introduced
C
were introduced
D
had been introduced
----- Are you going there with them? -----If you go, ________.
#104155
A
I also go
B
so do I
C
so I will
D
so will I