In this experiment, the famous professor showed three different ________ to the study of physics.(2012·河北保定中学月考)
The animal is ______; we must do something to save it.
.In that country about 80 percent of the population _____ farm.
– What are those men nover there? --- _________ Green Peace.
– I have a very bad cold. --- Well, have you ever heard of a saying which goes “_______ a cold and starve a fever?”
._______ lying on the floor, the old man was immediately taken to hospital.