---Michael,           do you go swimming?--- Twice a week.
#39726
A
how many
B
how long
C
how often
D
how soon
推荐题目
Please help  ______ .
#52927
A
my
B
its
C
her
D
your
Bill is ___________ classmate. He is a friend of ____________, too.
#54471
A
my,mine
B
his, mine
C
his, my
D
hers, mine