1.He must be from Africa,__can be seen from his skin.

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1.He must be from Africa,__can be seen from his skin.
A.that B.as C.who D.what
2.He has two sons,__works as chemists
A.two of whom B.both of whom C.both of whom D.all of whom
3.This is Mr.Smith,__I think has something interesting to tell us
A.who B.whom C.that D./
4.At the top of the mountain there is a castle__used to be the resident of a noble man
A.which B.what C.that D.where
做不来,希望有语法指点

D不仅引导定语从句,还在从句中充当成分,作主语
C
A引导定语从句,现行词是Mr.Smith
B引导定语从句在从句中充当主语

he must be from Africa,___can be seen from his skin. He must be from Africa,__________ can be seen from his skin. He must be from Africa,____can be seen from his skin. He must be from Africa,( ) can be seen from his skin 29.He must be from Africa,____can be seen from his skin. ___can be seen from his skin,the man must be from Africa. the man must be from Africa,（）can be seen from his skin. 35.He must be from Africa,__________ can be seen from his sk He must be from Africa,( )can be seen from his hat. A.it B.t He must come from Africa,___can be seen from his teeth and s 英语选择并说明理由1/ He must be from Africa,_________ can be seen fro He must be telling lies,___can be seen from his expression.A