Read and judge.（阅读理解，判断对错，对的画“√”，错的画“×”）Amy: What colour is your sweater?
Bill: It is white.
Amy: Whose trousers are they?
Bill: I don't know. What colour are they?
Amy: Grey. Are they Tom's?
Bill: No, Tom's trousers are black. I know, they are Mike's.
( )1. Bill's sweater is white.
( )2. Tom's trousers are grey.
( )3. Mike's trousers are grey.1. √ 2. × 3. √