_______.a. i’m not b. i am c. i’m( ) 6. ——______ is it? ——it’s red.a. what b. what colour c. what colour( ) 7. this is tim. ________ my brother.a. he’s b. she’s c. it’s( ) 8. __________is yellow.a. the sun b. the cloud c. the tree根据情景选择合适的答案, tim. e. it’