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
---Where is your new home now? ---In the new developed zone. But I _____ downtown for five years.
#101957
A
have lived
B
had lived
C
lived
D
was living
She ____ the house the whole morning but it seems to be at least an hour before she finishes it.
#102096
A
has been cleaning
B
cleaned
C
had cleaned
D
has cleaned
I didn’t hear you because I __________ the news on the radio.
#100146
A
listen to
B
am listening to
C
listened to
D
was listening to
Nowadays, we can obviously feel that the Net_______ our life rapidly.
#101860
A
had changed
B
changed
C
is changing
D
was changing