— the door, please.
— Please come in. The door .
| A．Be open; opens | B．Be open; is opening |
| C．Open; opens | D．Open ; is open |
Books by computers in the future.
| A．are replaced | B．are being replaced |
| C．have been replaced | D．will be replaced |
When he saw his old friend, he stopped with him.
| A．talk | B．talking |
| C．to talk | D．talked |
Betty to represent our school to take part in the Maths Olympics.
| A．chooses | B．has chosen |
| C．has been chosen | D．were chosen |
If there _____no buying and selling of a nimals, there___ no killing in nature.
| A．is ; is | B．will be ; will be |
| C．is ; will be | D．will be ; is |
I never drink coffee. -------______________.
| A．So do I | B．So did I |
| C．Neither did I | D．Neither do I |