According to an old story, Leif followed Biarni’s directions and sailed to _______ is believed to be the coast of present-day Canada.
A.where |
B.which |
C.what |
D.that |
The job was a great challenge and the bad weather _________ our difficulties.
A.added to |
B.added |
C.added up to |
D.added in |
It is said that this is the biggest lab ________ they have ever built in their school.
A.which |
B.what |
C.不填 |
D.where |
In order to attract more customers, many supermarkets usually sell their goods at a good________ at weekends.
A.benefit |
B.discount |
C.interest |
D.cost |
It will be at least three weeks________ he recovers from his illness and returns to work.
A.before |
B.when |
C.since |
D.after |
He found his house broken into and many things stolen _______ his return from office.
A.with |
B.in |
C.at |
D.on |