–Will the air in our city get cleaner?
–_______. Everybody likes clean air.
| A．I hope so | B．Never mind |
| C．Here you are | D．Me, too |
My grandmother is ill, _______ I have to look after her at home.
| A．or | B．so | C．if | D．but |
There are _______ foreign students in the class. Two are from the UK, three are from Australia and the other six are from Canada.
| A．five | B．eight | C．eleven | D．thirteen |
Mr. Jackson likes to have _______ cup of coffee in the morning.
| A．a | B．an | C．the | D．/ |
My uncle is a doctor. He sometimes has to work _______ night.
| A．in | B．at | C．on | D．for |