Cici enjoys dancing. It’s one of her_______ .

The company has a free long-distance telephone number_____ customers may call with any questions they have about the products .

People are starting to use new type of energy _______ the sun, wind and water.

sked abouttheir opinion about the schoolmaster ,many teachers would prefer to see himstep aside __________ younger men.

I still remember _______ to my home town whenI was young.