完形填空用 be stand come true have to before and scientist late l
完形填空用 be stand come true have to before and scientist late look stay 的适当形式填空
There are many people in the world now.There ____ a lot more people next century.The earth will be very crowded _____ there will be little room for each person Maybe there will be ___________ room only on the earth 600 years __________ That will be a very serious problem
完形填空用 be stand come true have to before and scientist late look stay 的适当形式填空
There are many people in the world now.There ____ a lot more people next century.The earth will be very crowded _____ there will be little room for each person Maybe there will be ___________ room only on the earth 600 years __________ That will be a very serious problem
So man is ______ for a way to solve the problem The moon is the satellite ________ on the moon one day But there is no air no plant and no life there.So _________ are doing experiments in many ways They ________ solve many problems man can live on the moon I am sure our dream will ___ in the next century