---Where is your father? ---He _______ to Shanghai. He has ever ______ there twice.
| A．has gone, gone | B．has been, been | C．has gone, been | D．has been, gone |
— Did you see Mr. Black just now? —Yes, He ___ his car when I met him.
| A．parked | B．was parking |
| C．parks | D．will park |
--- Do you know the woman ____ is walking on the other side of the street?
--- Oh, that’s my history teacher.
| A．What | B．which | C．who | D．whom |
The air in Xuzhou is much worse than that in many other cities.We must do______to protect our environment.
| A．nothing | B．anything | C．something | D．everything |
Remember to return the book to the library when you finish_____it.
| A．read | B．to read | C．reading | D．reads |
---How’s Bob now ?
---I hear the company _____him a very good job, but he turned it down.
| A．donated | B．served | C．offered | D．introduced |