In order to find the missing child，villagers ________ all they can over the past five hours.(2012·安徽)
| A．did | B．do |
| C．had done | D．have been doing |
Although we haven’t got the accurate statistics, it is estimated that ______ 300 factories in this province closed down during the economic crisis.
| A．absolutely | B．relatively | C．universally | D．approximately |
We can also______ for you to share an apartment with other international students.
| A．arrange | B．instruct | C．provide | D．settle |
Miss White was a ______customer here until the supermarket next door opened a couple of weeks ago.
| A．common | B．typical | C．normal | D．regular |
Parents should pay attention to areas ______ their child is having difficulty and spend extra time helping him or her.
| A．when | B．where | C．which | D．why |
I don’t think the price of gas will go down this week, ______ ?
| A．will it | B．don’t I | C．won’t it | D．do I |