1. The first ______ was done by Alexei Leonov, a Russian cosmonaut on March 18th, 1965. It was 10 minutes long
A. Spacesuit B. spacewalk C. spaceship D. spaceward
2. The Milky Way is just a ________ in the universe and it contains our Solar System
A.Planet B. comet C. meteorite D. galaxy
3. Christer Fuglesang said he enjoyed floating around in the ______ environment
A.Homesick B. heavy C. weightless D. quiet
