单项选择题
A.there B.which C.one D.that
This is the house（）he lived last year.A.thatB.whichC.wh...
单项选择题This is the house（）he lived last year.
A.that B.which C.where D.what
The sun heats the earth,（）is very important to living t...
单项选择题The sun heats the earth,（）is very important to living things.
A.that B.what C.which D.where
This is the problem（）we have no good solution as yet.A....
单项选择题This is the problem（）we have no good solution as yet.
A.to that B.which C.for which D.to which
