—We need to buy some summer clothes, John.
—Oh, I never know ________when I'm in the store.
| A．what clothes should buy |
| B．what clothes to buy |
| C．what clothes will buy |
| D．to buy what clothes |
It is reported that housing prices of China rose by 1.5% in January this year, ______ with the same month last year, ______ the public doubt deeply.
| A．compared, it | B．comparing, which |
| C．compared, which | D．comparing, that |
It was already one in the morning, and my candle was nearly burnt out, _____ I saw the dull yellow eyes of the creature open.
| A．when | B．that | C．where | D．how |
Under more favourable conditions, we _____ better
| A．need have done | B．should do | C．could have done | D．might be doing |
Estuaries provide both recreation and education for human beings. They also _____ the economy through tourism and fishing.
| A．contribute to | B．adapt to | C．respond to | D．apply to |
For more than a hundred years black people had to fight ______ the rights to vote, choose where to live, study and work.
| A．to give | B．to be given | C．giving | D．being given |