—How much shall I pay for the phone call?
—You________. This is free of charge.
| A．shouldn't | B．can't | C．don't have to | D．mustn't |
I used to love that film___I was a child,but I don’t feel it that way any more
| A．once |
| B．when |
| C．since |
| D．although |
But for the help of my English teacher,I___the first prize in the English Writing Competition
| A．would not win |
| B．would not have won |
| C．would win |
| D．would have won |
Now that we’ve discussed our problem,are people happy with the decision___?
| A．taking |
| B．take |
| C．taken |
| D．to take |
Studies show that people are more___to suffer from back problems if they always sit before computer screens for long hours
| A．likely |
| B．possible |
| C．probable |
| D．sure |
John thinks it won’t be long___he is ready for his new job
| A．when |
| B．after |
| C．before |
| D．since |