---- Why is the cake so expensive?---- Maybe you don’t know a cake made of wheat costs less than _____ made of rice.
You’d better put a screen-safety on your computer _____ your eyes from _____.
Under the Dome, ________ 103-minute documentary released by Chai Jing, has pushed________ public awareness about air pollution and encouraged people to join in efforts to make a difference.
______ the boy to save the money, but he would not listen to me.
Some parts in South China have experienced ______ this year as they did last year.
My brother is on a special _______ to lose ________weight.