---- Has Sam finished his homework today? ---- I have no idea. He ________ it this morning.
#72694
A
did
B
has done
C
was doing
D
had done
推荐题目
(2012·龙口高二检测) She loves the song _______, because her mother was once the singer of it.
#64110
A
in particular
B
in theory
C
in practice
D
in secret
----Did you _________ your friend when you were in Beijing?---No. But I _________ my aunt’s during my stay there.
#77840
A
call on; called on
B
call at; called at
C
call on; called at
D
call at; called on
An artist who was recently traveling on a ferry to the southern island discovered________a long lost antique Greek vase. (2013·湖北，30)
#64251
A
at random
B
by chance
C
in turn
D
on occasion
Who do you think will _______ since the president has resigned?
#65405
A
take over
B
take up
C
take in
D
take off