--When      your mother       you that computer?---Oh, I have forgotten.
#37379
A
does,buy
B
has, bought
C
has,had
D
did,buy
推荐题目
Jim______ to the shop. He’ll be back_____ an hour.
#40624
A
has gone; after
B
has been; in
C
has gone; in
D
has been; after
I ____you yesterday afternoon ,but you ____at home .
#37858
A
call ,aren’t
B
am calling ,aren’t
C
called , weren’t
D
calls, weren’t
What’s he doing?   He    Tv.
#40597
A
watch
B
watches
C
watching
D
is watching .