16.The two countries agreed to _____ full diplomatic relations. A. give up B. set up C. deal with D.over come 17.It’s difficult to _____ changes in technology. A. go with B. look through C .keep up with D. turn up 18.Six people applied for the job, but four of them were ______ A. turned down B. turned up C. turned on D. turned off 19. If I ______ in your shoes, I’d take it easy and try to forget it. A. are B. am C. were D. have 20.Magic number 18001567 is a _____toll free service. A. 24 hours B. 24-hours C. 24 – hour D.24 hour