Theenvironmentalists [advocated] better protection of the earth.

[问答题]Without water, there is no life on the earth.

A body weighs ______from the surface of the Earth.A. less the farther it getsB.

[单选题]Many kinds ofanimals have [vanished] from the earth.A.developedB.disappeare

Only by changing _____ we live can we save the earth.A. thatB. whatC. howD. wher

Million of(A) years ago, there lived(B) a lot of huge (C) animals on the earth.M

Geographers compare and contrast various places on the earth. But they also (51

15/50单选题（2分） _ happy family is _ Heaven on _ Earth.A. aB. A,a,theC. The,a/D. The

[单选题]Water is very important to living things. Without water there can be（1）life

[单选题]Water is very important to living things. Without water there can be（1）life

[单选题]Water is very important to living things. Without water there can be（1）life