I have never seen such a kind of man as you __________.
—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.
We will ______ all the natural resources if we continue consuming them like that.