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Once again he didn’t hand in his homework _____ he had been given enough time to do it．

．The conference aims to develop business and let people think about ______ they can have a positive influence on the planet．

They went on well at first but eventually everything ______ they had worried about happened．

—Hi, David, I heard you had an accident this morning．
—Yes．Luckily, I hit the brakes in time ______ I would have been injured badly．

Three free tickets for the Expo will be given to ________ comes first in the competition.

________ is stronger than steel and lighter than a feather is the silk ________ spiders make their webs.

— Is it for two months ________ they have stayed here?
— No. It’s only three weeks ________ they arrived here.

All the neighbors admire this family, ________ the parents are treating their child like a friend.

We have just heard a warning on the radio ________ an earthquake is likely to strike that area again.

Stand over there ________ you’ll be able to see it better.