For an astronaut, earth is
举一反三
- Once out of the earth’s gravity, the astronaut is affected by the problem of ______ (weight).
- Her ambition ________was never fulfilled. A: to be an astronaut B: be an astronaut C: being an astronaut D: that to be an astronaut
- ________wishes to become an astronaut!
- A natural gas fire in the Sahara Desert in Algeria had been burning for six months and was so big that American astronaut John Glenn could see it from space as he orbited Earth and the sand around the fire had melted into glass from the extreme heat.
- He’ll be an astronaut by the time he_____thirty.