It’s so silly ________ people to buy and store so much salt. It’s necessary ________ them to learn more about salt.
#48882
A
for; for
B
for; of
C
of; of
D
of; for
推荐题目
This CD-ROM can help you learn and have fun ______.
#50861
A
at times
B
on time
C
at the same time
D
in time
—It’s not easy _________Mrs White to persuade（劝说）her husband to stop smoking. He never listens to others.—Really? It’s stubborn ____________ him.
#48110
A
of; of
B
for; of
C
for; for
D
of; for