If _________, the bird flu would produce a powerful poison that would kill the patients.
A. not treat B not treated C untreated D. Both B and C
______is known to us, he is the top student of our class.
| A．It | B．As | C．This | D．That |
This is a book, which I dare say, is unequaled ______translation practice is concerned.
| A．as much as | B．as well as | C．as far as | D．as long as |
By the time he was dying, he made a testament that he would______his kidney(肾) to those who were in need of it.
| A．contribute | B．donate | C．provide | D．introduce |
University is ______ most worthwhile time of discovery and learning, and it is also ______very enjoyable and valuable experience for every one of us.
| A．a；a | B．a；/ | C．/；a | D．a；he |
— How do you find your trip to the Great Wall?
— We had an awful time! ______, George got sick the day we arrived.
| A．on the other hand | B．to begin with | C．as a consequence | D．on the contrary |