These achievements_______ without the contribution of Qian Xuesen, a key leader of the New China's nuclear, missile and so on．
| A．would have been unthinkable | B．would not be unthinkable |
| C．would be unthinkable | D．would not have been unthinkable |
— This is the first time I my first picture with my own hands．
— It is time that you a picture for me．
| A．took; will take | B．will take; have taken |
| C．took; took | D．have taken; took |
— Never thought to see you here!
—
| A．It’s a small world. | B．So did I. |
| C．Oh, haven’t you? | D．Glad to meet you. |
The central government is calling on the whole nation to make efforts to build
harmonious society and new socialist countryside．
| A．a；the | B．a；a | C．the；ｘ | D．ｘ；the |
-- Jane Gooddall is a great woman.
-- ______. She has done so much to protect chimps everywhere.
| A．Good idea | B．Congratulations | C．I think so | D．The same to you |
Email, as well as letters, ______ an important part in daily communication.
| A．is playing | B．have played | C．are playing | D．play |