E-mail is much ______than long-distance calling.
| A．cheaper | B．cheap | C．the cheaper | D．cheapest |
The Northern Tower of Xin Hua has a long history．It________in 1835．
A．is built
B．was built
C．was building
The meeting________tomorrow is very important．You can’t miss it．
| A．held |
| B．being held |
| C．to be held |
| D．is holding |
—It’s time to go to bed，Li Ming．
—Mum，I have a lot of homework to do and I won’t go to bed________I finish it．
| A．after |
| B．until |
| C．as soon as |
| D．since |
There was an important meeting last night．Mr.Smith________to it．
| A．was invited |
| B．invited |
| C．is invited |
| D．invites |
—Your city looks beautiful！
—Yes．Lots of trees and grass________last year．
| A．are planted |
| B．have planted |
| C．were planting |
| D．were planted |