.No important progress was made in the UN Climate Conference in Copenhagen as ______ of the rich countries agreed to offer large amounts of money to fight global warming.
| A．nothing | B．none | C．neither | D．both |
—The work will take me another week. I am really tired.
— I think you _____ as well consult an experienced worker.
| A．may | B．can | C．need | D．must |
He has got himself into a dangerous situation ________he is likely to lose control over the plan.
| A．where | B．which | C．that | D．why |
We first met in Shanghai Expo and we both felt immediately that we ______ each other for years.
| A．knew | B．have known | C．had known | D．know |
Tom looked at Jenny, with tears _______ his eyes, and shouted out the words ______ in his heart for years.
| A．filling; hiding | B．filled; hidden | C．filling; hidden | D．filled; hiding |
So difficult ________ it to work out the problem that I decided to ask my teacher for advice.
| A．I did find | B．I have found | C．have I found | D．did I find |