--- Have you moved into the new office building?
---Not yet .It ______
| A．is decorating | B．has been decorated |
| C．is being decorated | D．has been decorating |
“Please remain______until the airplane comes to a complete stop.” said the stewardess.
| A．seating | B．seat | C．seated | D．to seat |
—Why are you so busy these days?
— We_____trees. Why not join us？
| A．have planted | B．will plant |
| C．are planting | D．planted |
After the argument Colin ran away and______since.
| A．isnt heard of | B．wasn’t heard of |
| C．hasn’t been heard of | D．hadn’t been heard of |
The door is open but nobody is in. Mary______have forgotten to lock the door.
| A．should | B．must | C．would | D．could |
________I like Carter personally, I don’t think what he’s doing is right.
| A．If | B． As | C．While | D．Unless |