| A | B |
|---|
| The meadow had grass and flowers ___. | everywhere. |
| Hans will ___ back to China. | move |
| They had to ____ hard to finish building the stone wall. | work |
| Our principal is a | woman. |
| _______ help people do work. | Machines |
| Fish ______ in water. | live |
| Astronauts and scientists do___. | experiments |
| Eileen Collins was an ___. | astronaut. |
| A team of astronauts work together | because they have many jobs to do. |
| A robot arm is a ___ used by astronauts in space. | tool |
| The main idea of Exploring Space with an Astronaut is | what astronauts do in space. |
| The author's purpose (reason) for writing was | to give facts about astronauts. |
| The earth has air, but space | has no air. |
| Astronauts float around the spacecraft because | there is no gravity. |
