Our classroom is ________. A: four times as larger as theirs B: as four times large as theirs C: larger four times than theirs D: four times the size of theirs

The girl is one daughter of _________ . ( their, theirs)

That is our classroom, and which is __________ A: there B: their C: theirs

84（） A: that B: theirs C: it D: them

Mary and Tom have a house. _______ (Their/ Theirs) house is very big.

This dormitory is ours and that one is .( A: them B: they C: their D: theirs

When exchange name cards, usually ,（ ）official give theirs to（ ）official .

.These are my books. Where are ________? A: their B: theirs C: my D: your

These are my books. Where are ________? A: their B: your C: theirs D: mine

Look at_______. They are fishing in the river. A: they B: them C: their D: theirs