The first use of atomic weapons was in 1945. and their power _____ increased enormously ever since.
| A．is | B．was | C．has been | D．had been |
Why not go to big cities, young man? That’smany young men are.
| A．when | B．where | C．why | D．in which |
The big concert,to raise money for the victims of the hurricane in Australia, worked out very well.
| A．being meant | B．meaning | C．meant | D．had meant |
—Could you teach me how to download songs from the Internet?
—. It’s easy to learn.
| A．No problem | B．Never mind | C．Not at all | D．Don’t mention it |
The policeman looked around and caught a manhis hand into the pocket of a passenger.
| A．put | B．to be putting | C．to put | D．putting |
What made the whole nation sad was that more than 100 miners were buriedin the underground coal mine.
| A．live | B．living | C．alive | D．lively |