I know Mr Brown； we ＿＿＿＿＿＿ to each other at an international conference.
#104666
A
are introduced
B
have been introduced
C
were introduced
D
had been introduced
推荐题目
The library needs ________, but it’ll have to wait until Sunday.
#104295
A
cleaning
B
be cleaned
C
clean
D
being cleaned
In the questionnaire, the subjects are questioned whether they____ no smoking in the public area.
#101063
A
agree
B
comment
C
advocate
D
conduct
Just look at the room. My roommate ____ up his clothes.
#104840
A
is never hanging
B
will never hang
C
never hangs
D
never hanged
It was the second time that we ______ in holding such important parties.
#100119
A
had succeeded
B
succeed
C
succeeded
D
have succeeded
We had wanted to finish our task by noon, but it didn’t quite _____________ as planned.
#99273
A
find out
B
give out
C
hand out
D
work out