—Is this your dad?
—No,________. That’s my uncle.
| A．this is | B．it is. |
| C．this isn’t | D．it isn’t. |
Mr Green has lived in China _______ two years ago.
| A．before | B．after | C．for | D．since |
I think she is ________at dancing than singing.
| A．better | B．good | C．well | D．best |
He goes to work early on workdays _________ Saturday and Sunday.
| A．except | B．besides | C．and | D．besides |
There will be trees and pollution in the future.
| A．less, more | B．more, fewer | C．more, less | D．less; less |
——I don’t know if she __________ tomorrow.
—— If she _________ tomorrow, I’ll call you.
| A．comes; comes | B．comes; will come |
| C．will come; comes | D．will come; is coming |