It’s very important for a student to ___ a good state of mind while taking the college entrance examination. A keep out B keep on C keep up D keep off
Sam said the work would be done by December, _____ personally I doubt very much.
John thinks it won’t be long _________ he finishes the tough work.
Kathy, _________ for months to find a job as a typist, finally took a _________ at a local travel agency.
I called Mary many times yesterday evening, but I couldn’t get through. Her brother _________ on the phone all the time.
some people regard as a disadvantage is seen as an advantage by many others.