The printer is of good quality. If it ________ break down within the first year, we would repair it at our expense.
A. would B. should C. could D. might
They use computers to keep the traffic _________ smoothly.
A. being run B. run
C. to run D. running
I got to the office earlier that day,________ the 7:30 train from Paddington.
A. caught B. to have caught
C. to catch D. having caught
The manager _______ his workers how to improve the program since 9 am.
A. has told
B. is telling
C. has been telling
D. will have told
I can ______ the house being untidy, but I hate it if it’s not clean.
A. come up with
B. put up with
C. turn to
D. stick to
According to scientists, our mental abilities begin to __________ from the age of 27 after reaching the highest level at 22.
A. differ B. shrink C. fail D. decline
