—I remember you were a talented pianist at college.Can you play the piano for me?—Sorry，I ________ the piano for years.(2012·湖南)

We can hardly believe what she says because she is___changing her mind.

The accident that happened at an oil field_____ the southeast coast of the USA has caused great damage to the environment.[ ]

Be careful with such things. If you , you’ll drop them.

The two men walked _________ the forest andgot to a small house.