The problem may not____, but there's no harm to be careful.
| A．arise | B．reduce | C．increase | D．rise |
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 |
It was in the wooden house______ a businessman built by collecting funds______ the great scientist carried out the experiment that made a difference.
| A．which; that | B．where; that | C．that; where | D．that; which |
----To build a factory is beneficial to the locals, but on the other hand, it will be not environmentally friendly.
---- That’s_____ environmental protection organizations disagree.
| A．what | B．where | C．how | D．which |