21.閱讀短文,選擇正確的答案。 Hello,my name is Bill.I' m a student.I'm in Class One,Grade Six.I had a dream last night.I was a spaceman(宇航員).I was in a spaceship.I saw many stars in space.And I went to Mars(火星).Mars was very cold.There was no water and no air.And there were no trees.But there were Martians(火星人).They were very friendly.We became friends and played games together. (1)Bill is
. A.a spaceman B.a student C.a player (2)Last night Bill had a dream and he was in
. A.a ship B.a train C.a spaceship (3)It was very
on Mars. A.cold B.warm C.hot (4)Were there any trees on Mars?
A.Yes,there were. B.We don't know. C.No,there weren't. (5)The Martians were very