Điền từ :
Russian scientist recently said that a spaceship from (1) ............ . planet crashed in Siberia in 1908. He believed that a spaceship exploded 1.7 kilometer (2)............Siberia. THe Russian government kept(3).............report secrect and siad that it was a giant meteorite (4)..............crashed in Siberia.
They said that UFO was a bright object (5) ................ a fa-like tail."The object (6) .............probably a Chinese lantern balloon. Someone probably (8)........... it up before the mid-autumn festival," a scientist from the Royal Observatory said"The last (9)......... the Royal Observatory received report of a UFO was over thirty years (10) ....... in 1970." the scientist said.
1. another
2. above
3. that
4. which
5. with
6. was
8. sent
9. time
10. ago
