A.Because small pieces of food would fall down to the floor. |
B.Because weightless pieces of food might make trouble when they travel around. |
C.Because they haven’t enough food for longer trips. |
D.Because astronauts don’t want to waste food. |
A.walk just as they do on the earth. |
B.not eat anything because it’s dangerous. |
C.control the spaceship when they are sleeping. |
D.not litter small things or it will make trouble. |
A.Because he thinks it is comfortable to sleep in that way in space. |
B.Because he doesn’t want to touch any controls when he sleeps. |
C.Because the instruments of the spaceship are easily broken. |
D.Because he is afraid that the seat will move. |
A.Eating and Sleeping in Space |
B.How Astronauts Eat in Space |
C.Food for Space |
D.How Astronauts Sleep in Space |
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A.the scene of the crash and the damage |
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D.Burning hot weather will appear in the United States. |
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