The boys are still playing basketball happily on the court ______ it is raining heavily.

The heavy snow lasted for a week, _____ a serious traffic confusion in the whole area.[ ]

Boys, why not read some books ______ South Africa before you start your trip there

In many places in China, the old over 90 not only by their family but also by the government.

The 7:30 plane hasn’t turned up yet.—-It has gone off its tokeep away from the sudden storm