Question

_____ makes a new invention such a wonderful thing is ____ it allows us to do something ____ we could not do before.

A．What; what; what

B．That; that; \

C．What; that; \

D．That; what; that

Answer 1

C

考查從句。_____ makes a new invention such a wonderful thing是主語(yǔ)從句，且從句缺少主語(yǔ)，用what引導(dǎo)，排除B,D; ____ it allows us to do something是表語(yǔ)從句，且不缺成分，所以用that引導(dǎo)；something是不定代詞作先行詞，在定從____ we could not do before中作do的賓語(yǔ)，用that引導(dǎo)，也可省略。所以選C。