—Have you known Dr. Jackson for a long time?—Yes, since she________ the Chinese Society.
#104965
A
has joined
B
joins
C
had joined
D
joined
推荐题目
Would you please keep silent? The weather report ____ and I want to listen.
#100721
A
is broadcast
B
is being broadcast
C
has been broadcast
D
had been broadcast
When I called you this morning, nobody answered the phone. Where ________? 
#104733
A
did you go
B
have you gone
C
were you
D
had you been
The manager was concerned to hear that two of his trusted workers ______. 
#102158
A
will leave
B
are leaving
C
have left
D
were leaving