Can you describe _____it happened?— Yes,I was riding on my bike_____ a car knocked me down from behind[ ]

It was on the festival occassions _____ the family got together _____ he missed his family[ ]

It is ______ for children to learn to take care of themselves if they are going to camp for two weeksby themselves.[ ]

The World Cup is coming. I won’t _______ any game!— I’m looking forward to _______ every match of it, too.

My father likes reading. There ________ many books on his desk.