“I don’t think it’s my ________ that the window suddenly broke. I just opened it, that’s all,” said the boy in tears.

this story, ______ you will realize that not everything can be bought with money.

The environment is becoming worse and worse. We must stop the pollution __________ longer. [ ]

Excuse me, could you tell me ________ tofly to Guilin— About two hours.

Mr. Zhang that helped us out of the trouble. Without his help, we ______ itso easily.