My aunt left her office after she __________ her work. 
#37970
A
had finished
B
finishes
C
has finished
D
was finished
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By the end of the last month, I _____________ all the CDs of Justin Bieber.
#41903
A
collect
B
collected
C
have collected
D
had collected
How time flies ! Several years _____ since we last met at Jack’s Party.
#39388
A
has passed
B
had passed
C
have passed
D
will pass
 My sister has learnt English _________.
#36360
A
for twelve years ago
B
since she was four
C
twelve years ago
D
at the age of four