My room is________my sister's.
A,three times as big as B,as three times big as
The water in this bottle is colder than____.
A.that bottle B,in that bottle C.the water in that bottle
D.that in that bottle
He's unhappy at the sad news,_____?
A.isn't he B,is he
My room is________my sister's.
A,three times as big as B,as three times big as