— I don’t know _________.— Because she has to look after her grandma.
| A．why Ann is leaving | B．whether Ann is leaving |
| C．why is Ann leaving | D．when Ann is leaving |
— If there are ____ trees, the air will be cleaner.
— I agree. Then there will be less pollution.
| A．much | B．less | C．fewer | D．more |
— You look scared. What happened?
— Well , I _______ along the street ________ the UFO landed.
| A．was walking ; while | B．is walking ; when |
| C．was walking ; when | D．is walking ; while |
Tom was ill in bed today, so we all went to the old people’s home ____ him.
| A．except | B．with | C．for | D．about |
— Listen ! Helen is singing in the classroom .
—It’s ______ .She hardly ever sings .
| A．disappointing | B．amazing | C．boring | D．bad |
— Will there be more people in the future ?
— No, ________. There will be fewer people.
| A．there is | B．there isn’t | C．there will | D．there won’t |