It’s nice to see you again. What _____ since we last met?  
#103399
A
have you done
B
had you done
C
have you been doing
D
did you do
推荐题目
―Why? Where is my cellphone?―Dear me! You _______ it in the taxi!
#101869
A
have never left
B
never left
C
haven’t left
D
didn’t leave
Do you know the thief_______by the police.
#101352
A
has been catching
B
has caught
C
has been caught
D
will caught
-Why does the Lake smell terrible? -Because large quantities of water       .  
#104968
A
have polluted
B
is being polluted
C
has been polluted
D
have been polluted