As most of their houses were badly damaged after the earthquake, many people had to be in a stadium.
Some people would rather ride bicycles as bicycle riding has ______ of the trouble of taking buses.
—I am afraid I can't return the book to you before Friday.— ______ .
Bluetooth is a radio-technology allowing cell phones, wireless earphones, etc. to ______ radio signals, so that people can contact each other within 10 metres.
—John, I know nothing about playing tennis. I wonder if you could teach me.— ______ . Just name the day.
Enjoying popular songs on the Internet has greatly ______ me the trouble of going to the video shops to purchase some VCDs.