What best quality ______ most people _______ in others is the willingness to admit one’s mistakes.
| A．which, approve | B．/, appreciate |
| C．that, impress | D．where, regard |
_______ well prepared you are, you still need a lot of luck in mountain climbing.
| A．However | B．Whatever | C．No matter | D．Although |
We had to wait half an hour _____ we had already booked a table.
| A．since | B．although | C．until | D．before |
Tom was thinking about how to explain to the teacher why he was late for class, when a good idea ______ to him.
| A．happened | B．brought | C．occurred | D．struck |
Parents feel they don’t have the ability to influence children’s decisions ______ children feel their parents’ goals are hard to achieve.
| A．although | B．while | C．until | D．unless |
The company had about 20 notebook computers but only one-third _____ used regularly. Now we have 60 working all day long.
| A．is | B．are | C．was | D．were |