-- ________  your homework yet?-- Not yet. I _______ it.
#38354
A
Have you done; am doing
B
Did you do; am doing
C
Have you done; did
D
Did you do; did
推荐题目
I will stay at home and read some books if it _________ tomorrow.
#39778
A
rain
B
will rain
C
rains
D
is going to rain
I used to be crazy about the film when I was young, but I ____ it that way any more. 
#39571
A
don’t feel
B
didn’t feel
C
haven’t felt
D
hadn’t felt
---Pardon? I _____ quite catch you.--- I said I ______ the song before. 
#39608
A
didn’t, hadn’t heard
B
don’t, didn’t hear
C
didn’t, didn’t hear
D
won’t, hadn’t heard
 — When _________ you________ your teeth, Billy?—Just now.
#42507
A
do; brush
B
have; brushed
C
did; brush
D
was: brushing