谈论宇航员与太空生活 — 英语填空题
题目
Read and complete. 用所给词的适当形式填空。
1. Wang Yaping ___ (give) a science class from the space station last year.
2. In space, astronauts ___ (not walk) because there is no gravity (重力); they float.
3. Before an astronaut goes into space, he must ___ (do) a lot of training on Earth.