It is the superior intelligence and the use of language that distinguish man______ the other animals.
______ his return from Europe , he set to work on the project..
-- Do you need a hand, Tom?----Yes. The job is ______ I could do myself.
Life is full of _______.School is thought as the most _______ obstacle(障碍) in the lives of youth today.
In the past, women were ______ and they often couldn’t get a good job.
He was left _______ the shop while the manager was away.