They've kept up a friendship with the teacher whom they were at school _____ twenty years ago.
#28347
A
with
B
about
C
since
D
till
推荐题目
Measures have been taken to fight ________recurring food safety problems, but there is still a long way to go before China can rid itself ________ these issues.
#25217
A
for; of
B
for; from
C
against; of
D
against; from
This new model of car is so expensive that it is ______ the reach of those with average incomes.
#28740
A
over
B
within
C
beyond
D
below
We were running out of gas. I went off ____ a service station where I could buy some gas.
#27340
A
in danger of
B
in need of
C
in search of
D
in return for
Lately some scientists are experimenting ___________ white mice to ____________ this kind of medicine.
#27470
A
on,try on
B
with, test on
C
on ,test out
D
with,carry out