【正文】
12. What do a________ do? 13. They fly r________ and they do science 14. I want to fly to the o________ s________.15. I will study the moon and see the s________.16. But I can see the s________ and other stars. 選擇題。1. astron___ ___t (宇航員)2. sp___ ___eman (宇航員)3. ___ ___ace (宇宙,太空)4. M___ ___s