You'd better take these documents with you（ ）you need them for the meeting.
A.
unless
B.
in case
C.
until
D.
so that
正确答案是B
You'd better take these documents with you（ ）you need them for the meeting.
You'd better take these documents with you（ ）you need them for the meeting.
A.
unless
B.
in case
C.
until
D.
so that
正确答案是B