When deeply lost in thought, _______ he often was, he would forget all about eating or sleeping.
A. that B. where C. which D. when
Ever since Daming graduated from the university, he _______ in the present company for 15 years and he is now chief engineer of the company.
A. worked B. has been working C. is working D. works
You’d better put away the magazines you have read, for they _______ be of great use later.
A. shall B. need C. can D. must
According to the American law, parents must keep their kids _______ except when they are in school.
A. safety B. company C. friend D. partner
Everything was placed _______ where he wanted it for the party, with which he was very satisfied.
A. gradually B. entirely C. officially D. exactly
The better _______ you have of words, the better chance you have of saying exactly what you mean.
A. contribution B. command C. master D. power
