After a decade focused on events in the Middle Fast，the United States has recently bolstered its presence in the Asia-Pacific.

A.strengthened

B.experimented

C.franchised                          

D.weakened

The Asia-Pacific region，which was one of the few areas enjoying dynamic economic development at that time，aroused U. S. interest.

A.static                            

B.active

C.flexible                           

D. strident

 I reckon this year’s corn imports are likely to stand between 2 million tons and 2. 5 million tons.

A.estimate                          

B.diminish

C.clarify                           

D.conceive

In foreign exchange markets，hedge funds are the currency speculators that worry governments the most.

A.opportunists                           

B.onlookers

C.entrepreneurs                           

D.players

In 2007，in a contest supervised by the World Bank，the joint venture outbid more than eight competitors hailing from the United States，Canada，Russia and Europe to win the Afghan government’s contract.

A.cooperated                               

B.organized

C.outdo                                    

D.eliminated