Many people complain of the rapid______of modern life.

A. rate

B. pace

C. speed

D. growth

People in that district ____ use oil lamps, for there is no gas or electricity.

A. can

B. may

C. must

D. have to

Never ______a greater day in the history of mankind.

A. did there be

B. was there

C. there was

D. there has been

-I wonder why Mr. Green hasn't shown up at the meeting yet.
-I' m not sure, but he______in a traffic jam driving here.

A. could be stuck

B. might stuck

C. might have been stuck

D. must have stuck

The government decided to______the expenses in office supplies.

A. cut down

B. cut off

C. cut up

D. cut in