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
He__________ he would be able to leave tomorrow, but it's beginning to take difficult.
#104305
A
hopes
B
was hoping
C
had hoped
D
hoped
-Have you got your test result? -Not yet. The papers _____.
#104685
A
are still being corrected
B
are not correcting
C
have already been corrected
D
have not corrected
Stay awake！You should know that it ________to sleep in class.
#102691
A
doesn’t permit
B
is not permitted
C
will not be permitted
D
was not permitted