1) The________ of the lake is frozen. a) universe b) satellite c) rescue d) surface 2) Our world is a small part of the_______. a) moon b) gravity c) universe d) atmosphere 3) A lifeboat came to_______ the people on the sinking ship a) evidence b) explore c) rescue d) observe 4) The role of scientists is to_______and describe the world. a) observe b) gravity c) satellite d) evidence 5) _________is a form of magnetism. a) solar system b) gravity c) moon d) universe 6) The detective observed every bit of______ a) orbit b) galaxy c) evidence d) space shuttle 7) Pluto is the farthest________ in the solar system. a) galaxy b) planet c) space shuttle d) meteor 8) Walking is the best way to__________the city. a) rescue b) evidence c) explore d) surface

planets

由
打印
嵌入

排行榜

视觉风格

选项

切换模板

恢复自动保存：？