unclear adj.不清楚的；不明確的；
/VnklIE /
安克力啊 安可麗爾
cl策略， ear耳朵
策略是要用耳朵聽清楚的。
un－－加在形容詞 ( 以 ab le結尾的除外)、過 去分詞、現在分詞前面構成形容詞，表示完全否定。
Written exercises 書面練習
A Rewrite these sentences, using either has to or I think he is probably ...模仿例句，使用has to或I think he is probably ... 改寫以下句子。
Examples：
He must be home before six o』clock.
He has to be home before six o』clock.
He must be tired.
I think he is probably tired.
1 He must be here at six o』clock.
2 He must be busy.
3 He must be at the office early tomorrow.
4 He must be sleeping.
5 He must be French.
6 He must be in France next week.
7 He must be an engineer.
B Write new sentences.
模仿例句改寫下列句子。
Example：
I think she』s Danish. (Swedish)
I don』t think so. She can』t be Danish.
She must be Swedish.
1 I think she』s Italian. (Greek)
2 I think he』s English. (American)
3 I think they』re Canadian. (Australian)
4 I think he』s a mechanic. (engineer)
5 I think he』s a bus conductor. (bus driver)
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