The place ________ the bridge is supposed to be built should be _________ the cross-river traffic is the heaviest.
A.which, where | B.at which, which | C.at which, where | D.which, in which |
The worker can make chairs ____ wood, and also can make paper ____ wood.
A.from, of | B.of, from | C.of. of | D.from, from |
The teacher is writing ____ a piece of chalk on the blackboard while the students are writing ____ink in exercise books.
A.with, in | B.in, with | C.in, in | D.with, with |
—You know. Bob is a little slow ____ understanding, so…
— So I have to be patient ______ him.
A.in ; with | B.on; with | C.in; to | D.at; for |
We were just about ready to leave _____ it started to snow.
A.when | B.before |
C.after | D.since |
_____ the government agrees to give extra money , the theatre will have to close.
A.Until | B.Unless |
C.Since | D.While |