---What does your mother do to keep fit, Tom? ---She usually ______ after supper. 
#38096
A
walk
B
walks
C
is walking
D
to walk
推荐题目
I will _______ him when I _______free.
#41766
A
call, am  
B
call to, am
C
call, will be 
D
call to, will be
—When and where to spend the holiday ____ yet.—Let’s make it now.
#36654
A
is decided
B
doesn’t decide
C
has not been decided
D
has decided
--Do you know when Jim     _________ ?---I don’t know. As soon as he      , I will call you.
#36676
A
will arrive ; arrives
B
arrives ; will arrive
C
will arrive ; will arrive
D
arrives ; arrives
Someone ______ at the door. Can you open it?
#36310
A
knocks
B
knocked
C
is knocking
D
was knocking