We don’t write to each other regularly,but we do keep intouch by telephoning _____.
#84432
A
at a time
B
once
C
at once
D
once in a while
推荐题目
All the children are busy going over their lessons as the final exam is __________.
#71162
A
along the way
B
in the way
C
on the way
D
by the way
 I prefer studying English at home ______ the match.
#64540
A
to watching
B
than watching
C
rather than watch
D
to watch
— Whose Chinese vase is it?— I have no idea, but I’m pretty sure it _______ the old lady.
#66642
A
doesn’t belong to
B
belongs to
C
isn’t belonging to
D
belonged to