The university estimates that living expenses for international students ________ around $8,450 a year, which ________ a burden for some of them.
A. are；is B. are；are C. is；are D. is；is
Generally speaking, according to the directions, the drug has no side effect.
A. when taking B. when taken C. when to take D. when to be taken
Only when your identity has been checked, ___________.
A. you are allowed in B. you will be allowed in
C. will you allow in D. will you be allowed in
You have no idea how she finished the relay race _______ her foot wounded so much.
A. for B. when C. with D. because
It may not be a great suggestion. But before _______ is put forward, we’ll make do with it.
A. a good one B. a better one
C. the best one D. a best one
