From facts, scientists have_______ that more energy is being absorbed from the sun, throwing the earth’s energy “out of balance”.

__ himself with greatstrength, he raised himself

The price of the house is too ______. I am afraid Ican’t afford it.A．cheap

I have two books. One is for you, ________ isfor her.

Susan decided not to work on the program at home because she didn’t want her mother to know what she _____