---     Bob doing homework?---No, he isn’t. He is        a letter.
#41826
A
Does, writes
B
Is, writes
C
Does, writing
D
Is, writing
推荐题目
—Mum, can I go to the zoo with Jack this weekend? —When your homework_______, you can. 
#41707
A
is done
B
was handed in
C
will be completed
D
had been finished
It        when I        my homework last night.
#40154
A
raining, did
B
rained, was doing
C
was raining, do
D
rains, was doing
More than 20 people ________ in traffic accidents ________ last May.
#37492
A
have died, for
B
have died, since
C
have been dead, since
D
have been dead, for
—What did Lucy say? —She said she _______ Hangzhou the next year.
#41833
A
would visit
B
will visit
C
visited
D
is visiting