Question

I have read a series of stories about some world famous great scientists,     are from our country.

A．two of them

B．two of whom

C．both of them

D．both of whom

Answer 1

B

考查定語(yǔ)從句。Scientists是先行詞，在定語(yǔ)從句_____are from our country中作介詞of的賓語(yǔ)，them不能引導(dǎo)定語(yǔ)從句，排除A,C；two of whom是科學(xué)家中的兩個(gè)，both of whom兩個(gè)科學(xué)家都……。句子中指的是一些科學(xué)家，而不是兩個(gè)。所以選B。