I know Mr. Brown；we ＿＿ to each other at an international conference.
#104419
A
are introduced
B
have been introduced
C
were introduced
D
had been introduced
推荐题目
He ______ chess well. But since he graduated from university, he almost has had no time to touch it.
#101351
A
played
B
plays
C
has played
D
had played
This is the first time we ______ a film in the cinema together as a family.
#101473
A
see
B
had seen
C
saw
D
have seen
It was cold.The wind ___ hard and no one could be seen around.
#103967
A
blew
B
was blowing
C
had blown
D
would blow
— Where is your mother? —She ________ the shop. She’ll be back in an hour.
#100151
A
has been to
B
has gone to
C
goes to
D
go to
At the time of the earthquake Jeff was still in his office. He ________ to finish a project before he left for the day.
#104776
A
has tried
B
had tried
C
has been trying
D
had been trying