语法填空。
(1)(2020·全国Ⅰ卷)China first had to put a satellite in orbit above the moon in a spot where it could send signals to the spacecraft and to Earth.
(2)(2019·浙江高考)On the edge of the jacket, there is a piece of cloth that/which gives off light in the dark.
(3)(2020·全国Ⅲ卷)We are the products of evolution(进化), and not just evolution that(which) occurred billions of years ago.
(4)The reason why I learned to cook was that my mother could rest after she finished her work.
(5)(2019·江苏高考)We have entered into an age when dreams have the best chance of coming true.
(6)(2020·全国Ⅱ卷)Children who(that) play with puzzles between ages 2 and 4 later develop better spatial skills.
