You’d better          your score and see if you have passed the exam.

Mary worked here as a ________ secretary and ended up getting a full­time job with the company.                                                     

— What has _____ my dictionary? I can’t find it. — Don’t you forget you’ve lent it to Lucy?

The world economy has improved ________ since the end of last year，but major problems and challenges are not fully solved.

It is the bus driver who should ______ the safety of the passengers.