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106 The longest day must have an end.最难过的日子也有尽头。
语法点 情态动词must表示有把握的推测
说明
The best of friends must part．莫逆之交，终有一别。
What must be must be．该发生的事必然会发生。
填空练习
1．凡事都有起源。
Everything must have a ______.
2．两人共骑一匹马，总有一个背后跨。
When two ______ on one horse, one must sit behind.
（答案：1. beginning 2. ride）
A geography teacher once told her class, “The moon is so large that several million people could live there.”
One boy started laughing, “It must get crowded when it's a crescent moon (新月).”
小幽默