The field research will take Joan and Paul about five months; it will be a long time _________ we meet them again.
#15118
A
after
B
before
C
since
D
when
推荐题目
Do you prefer_____when your boss takes an interest in your personal life?
#15097
A
this
B
不填
C
that
D
it
I wanted to buy a copy of The Youth, but there was left in the bookshop．
#57189
A
no one
B
something
C
anyone
D
None
As volunteers, they should do ______to help the children in trouble.
#57822
A
nothing
B
anybody
C
something
D
somebody