7.--- Will you go to the lecture this afternoon?----No. I_______ to the lecture before.
Three hundred firemen raced to the hotel after a smoke detector(检测器)_____ the alarm soon after midnight.
Can you _____ the point? If you can, please explain it to me.
With the boy _____ the way, we had no trouble _____ the way to lead to Zhongshan Park.
Most Irish people go to ____ church every Sunday and the church plays ____ important part in people’s lives.
— Where do you thinkhe the computer — Sorry , I have no idea.