Mary’s QQ number must have been stolen by someone else yesterday, _____ Because she asked me to lend her ￥5,000, _____ had never happened before.

Those ___ want to go there, please write down your names.

Our city used to be beautiful.—That’s true. But _________ there is too much pollution. It’s not as beautiful as before.

I think we have met the word before.　　　　— Yes. It is in the reading material ____ we ____ reading yesterday.

It was at the entrance of the zoo ___________ he met his girl friend who had been to London for a better position.