Mike and I _______ net-friends. We talk on-line every week.
#62066
A
am
B
was
C
are
D
is
推荐题目
It’s necessary _______ a foreign language.
#52011
A
of us to learn
B
for us to learn
C
of us learning
D
for us learning
—Millie, how long have you __________ this book?—For over a week.
#52042
A
kept
B
have
C
borrowed
D
lent
--- What do you think of the math problem ? --- It’s very hard and nobody has _______.
#57830
A
put it out
B
helped it out
C
worked it out
D
solve
We have _________ some organizations to help the poor students in the western areas of China.
#60514
A
taken up
B
put up
C
set up
D
picked up