It was estimated that the thieves hadstolen _____ worth of jewelry from the shop

Johnny, you ________ play with the knife, you ________ hurt yourself.

Ann is in hospital.____ Oh ,really? I ______ knowI ______ go and visit her

People are _________the use of alternative energy sources. Because the fossil fuels _________will be used sooner or later.

foreigners, the Great Wall is worth ______.