More often, the air in Hangzhou is dirty because of _____.
| A．corn | B．pollution | C．medicine | D．temperature |
In fact，I have lived here ________ 2000．
| A．in | B．for | C．since | D．At |
His sister’s never been to the Summer Palace, ?
| A．is he | B．has he |
| C．has she | D．isn’t she |
He _____ be at home, because the light is on.
| A．must | B．can’t | C．can | D．mustn’t |
Uncle John ________his hometown for twelve years．
| A．left | B．has left |
| C．has gone | D．has been away from |
Can you do the work better with _____money and _____ people?
A litter; few B. few; little
C. less; fewer D.fewer ;less