If I could help___,I needn’t have taken trouble to send the broken computer to the repairing centre.
| A．myself | B．it | C．that | D．this |
I have offered to paint the house ______ a week’s accommodation (居住).
| A．in exchange for | B．with regard to | C．by means of | D．in place of |
_______ 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 |