托福考试

【单选题】 by the United States government’s Bureau of Labor Statistics, the Consumer Price Index compares current costs of goods and services with past costs. 
A. To prepare 
B. As it prepared 
C. When preparation 
D. Prepared 

【单选题】it is thE numBEr, kinD, AnD ArrAngE oF tEEth thAt DEtErminE whEthEr A mAmmAl is ClAssiFiED As A CArnivorE not thE FooD thAt thE AnimAl ACtuAlly EAts.

【分析解答题】wEAthEr ForECAsting wAs oF vitAl (importAnt) in thE sEAFAring (AnD AgriCulturAl) livEs (lED By) thE sEvEntEEnth-CEntury EuropEAn Colonists (in whAt) is now thE unitED stAtEs.

【单选题】 Lumber (production) was the (main industry) in Michigan until (the early) 1900's, (which) the automobile industry was established in Detroit.
A．production
B．main industry
C．the early
D．which

【单选题】 Before the Europeans arrived, American Indians were using virgin copper ...... into ornaments, knives, and other artifacts.
A．( Which was hammering
B．( which hammered
C．( was hammered
D．( hammered