用方框中所给单词的适当形式填空,使句子通顺、正确。每个单词限用一次。
| dry south against impossible know |
66. No shouting! It’s _________ the rules.
67. My hometown is a beautiful city in the ________ part of China.
68. The time is short. It’s ___________ for Daniel to finish this work.
69. Mark Twain isn’t ________ as a great thinker like Confucius.
70. There’s no rain. The weather in Xi’an is ________ than I think.