If you are traveling ________ the customs are really foreign to your own，please do as the Romans do.
#67465
A
in which
B
what
C
when
D
where
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A warm thought came to me ________ I might help wash my mom’s feet on Thanksgiving Day.
#68053
A
if
B
when
C
which
D
that
Living on campus teaches the college freshmen ___________ to get along with all types of people and care for others.
#69504
A
who
B
what
C
whether
D
how
There is no possibility________ he will keep his word. He is always telling lies.
#67987
A
how
B
whether
C
when
D
that