It was careless ___ you to have left your clothes outside all night.— My God! _____

During my visit to Africa, I suffered a lot ______ the heat there.

On the __________ first day, our teacher told us that it was vital that we __________ notes in English class.

I don’t think ________is possible for us to get a taxi at this time of day.

utdoor training is an exercise , as we know, teenagers’ confidence can be built.