单项选择题
A.It is bigger. B.It has a larger yard. C.It is a prettier color. D.It has a prettier yard.
A.Better. B.Sick. C.Fine. D.Tired.
A.the gravity on the earth is 80 times as big as that on the moon B.the weight of the earth equals the weight of 18 moons C.a stone can be thrown far away very easily on the moon D.the moon is a good place to play golf