托福考试

【单选题】（） directly with most metals to form compounds called carbides. 
A. Carbon reacting 
B. Carbon reacts 
C. The reaction of carbon 
D. When carbon reacts 

【单选题】 Navigators on ships and aircraft use a compass to determine （） they are heading. 
A. the direction in which 
B. to where the direction 
C. that direction of which 
D. where the direction 

【单选题】 somEonE mAy rEFusE to rECognizE thE sEriousnEss oF An EmotionAlly thrEAtEning situAtion AnD pErCEivE As lEss thrEAtEning.

【分析解答题】 ChilDrEn (who) Form A positivE sElF-ConCEpt ArE morE AssErtivE, optimistiC, (ConFiDEnCE), AnD soCiABlE (thAn thosE) who (Do not).

【单选题】 Electoral politics in the United States has been dominated by two political parties since the administer of George Washington.