Many _______ of years later, the first extremely small plants began to appear on the surface of the water.
A.millions |
B.million |
C.million of |
D.millions of |
_______ Jane’s way of studying chimps, our group are all going to visit them in the forest.
A.Follow |
B.Following |
C.Followed |
D.To follow |
Jane warns us that our group is going to be very tired and dirty by the afternoon and she is right. However, the evening makes it all ______.
A. favorable B. worthwhile C. precious D essential
Many of them have ______ gift for riding wild horse and can win thousands of dollars in prize.
A./ |
B.an |
C.a |
D.the |
Everybody sits and waits in the shade of the trees while the family begins to wake up and ______.
A.move off |
B.move on |
C.move out |
D.move in |
They are putting too much carbon dioxide into the atmosphere, ______ prevents heat from escaping from the earth into space.
A.what |
B.that |
C.which |
D.who |