25. I felt it rather inappropriate to turn up at the graduation ceremony _____ jeans and a T-shirt.
A. in B. on C. by D. with
26. Education knows no limits. It _____ take place anywhere, whether in a kitchen or in the job.
A. should B. can C. need D. must
27. It is an established fact that factory workers work better, harder, and have _____ accidents when
their machines are painted orange rather than black or gray.
A. fewer B. few C. more D. less
28. — Which of these electronic watches do you like?
— ______of them. They are expensive and of little use.
A. None B. All C. Both D. Either
29. To help today’s customers make a choice, a company in New York _____a video trolley — a
supermarket trolley with a video screen to display advertisement and price information.
A. has invented B. had invented C. invents D. is inventing