托福考试

【单选题】（） all cherry trees are very attractive when in bloom, some species with inferior fruit are cultivated especially for their flowers. 
A. Although 
B. There are 
C. It is 
D. That 

【分析解答题】 (mAny) Films (proDuCED) in thE unitED stAtEs (During) thE 1930’s wErE sEt in thE AmEriCAn Civil wAr pErioD AnD thE yEArs Following (thEm.)

【单选题】 Diamond is the hardest known substance, so diamond can be cut only by another diamonds.

【单选题】 While photosynthesis in green plants, light energy is captured and used to convert water, carbon dioxide, and minerals into oxygen and energy-rich organic compounds.

【单选题】 Gold (can combined) with silver (in any) proportion, but alloys with 50 (to) 60 percent silver are (the strongest).
A．can combined
B．in any
C．to
D．the strongest