In the future, care for the environment will become very important as earth’s natural resources _____．
| A．add up | B．set down | C．close up | D．run out |
_______ originally as the biggest defense work in ancient China, the Great Wall today has become one of the must–see places for visiting foreign leaders to the country in the past six decades. Obama is the fifth US president _______ the man-made wonder.
| A．Having been built; visiting | B．Being built; visited |
| C．To build; having visited | D．Built; to visit |
_______ A/H1N1 influenza cases accounted for 89.4% of all flu cases reported in _______ mainland of China last week, almost 3% points higher than the figure of the previous week.
| A．The; the | B．/; / | C．An; the | D．The; / |
---How is it that you are late for class again?
---_______.
| A．By bus and then on foot | B．Because I missed the bus |
| C．It’s quite all right | D．It’s far from school |
— What should I do with this passage?
— _____________ the main idea of each paragraph.
| A．Finding out | B．Found out | C．Find out | D．To find out |
. ____________ David says sounds right to Helen. That’s why she has made up her mind not to leave him _____________ happens.
| A．Whatever; whatever | B．No matter how; whatever |
| C．No matter what; however | D．Whatever; no matter how |