---Mr. Black, I just can’t get my car started. I think there’s something wrong with the engine.---Oh, let me see. Ah, that is not _______ it is. Actually, your car has used up all the petrol.
He didn’t make ________ clear when and where the meeting would be held.
The book was written in 1946,the education system has witnessed great changes.
In this seaside resort, you canall the comfort and convenience of modern tourism.
The country has already sent up three unmanned spacecraft, the most recent ____ at the end of last March.
They ___ two free tickets to Canada, otherwise they’d never have been able to afford to go.