If I a bird, I’d fly to the blue sky.A、were B、will be C、am
---Look at the machine in the corner. I haven’t seen it before. ---It ________ examining the patient.
---________ tall the red building is! ---Yes, it’s our new library.
---Your city looks beautiful. ---Yes. Lots of trees and grass ________ last year.
The nice T-shirt must be ________, because they both like wearing T-shirts.
---Mike, do you know which CDs belong to ________? --- I’ve no idea. You may ask Alice.