During his first trip to China, President Obama discussed some key global issues such as economic recovery, climate change, _______ nuclear weapons in his talks with Chinese President Hu Jintao.
| A．and stopping to spread | B．to stop spreading |
| C．to stop to spread | D．and stopping the spread of |
_____ you keep on trying, I really don’t mind whether you can come up top in your class.
| A．As long as | B．Even though | C．As soon as | D．The moment |
The medical reform in that country proved to be _____ failure, but as we know, success often comes after _____ failure.
| A．a; the | B．a; / | C．a; a | D．/; / |
After working for two years, Tim Martin was ___ as the top manager in charge of the company.
| A．ranked | B．appointed | C．recognized | D．classified |
I’m sorry to tell you that we decided __________ your plan.
| A．to abandon | B．abandoning | C．to quit | D．quitting |
They are going to find a new approach ______these complex problems.
| A．to solving | B．to solve | C．in solving | D．solves |