— Could you please do some shopping for me, Mary?— Sorry, I ______ my homework.         
#42147
A
do
B
am doing
C
have done
D
was doing
推荐题目
The teachers ________ on the blackboard with chalk in the future.
#39033
A
isn't writing
B
didn't write
C
don't write
D
won't write
What languages ________ in that country?German and English.
#38887
A
are speaking
B
are spoken
C
speak
D
is spoken
If he          to the party, he           a good time.
#37991
A
goes; has
B
will go; has
C
will go; will have
D
goes; will have