If you are traveling_______the customs are really foreign to your own, please do as the Romans do. 
#74347
A
in which
B
what
C
when
D
where
推荐题目
 It was the training _____ he had as a young man _____ made him such a good engineer.
#67032
A
what ; that
B
that ; what
C
that ; which
D
which : that
This composition is ___ order, ___ makes the teacher ____.
#71702
A
in, which. Puzzled
B
for, that, happy
C
out of, which, angry
D
no, it, disappointed
Tom  is _______John .    
#73071
A
so clever a boy as
B
so a clever boy as
C
as a clever boy as
D
as clever a boy as﹡