Ⅰ.补全句子。
1．不论孩子还是成年人都喜欢放松自己。
Not only children but also ________ like to relax ________.
2．飞机两分钟之前降落在虹桥机场了。
The plane ________ at the Hongqiao Airport ________ ________
________.
3．我的自行车坏了，所以需要修理。
My bike is ________， so it needs repairing.
4．我的裙子是真丝的。
My dress ________ ________ ________ silk.
5．养兰花不仅有趣而且很有挑战性。
Growing orchids(兰花) is a lot of ________ and ________.
