1 . 到目前为止，我最欣赏的是它的建筑。
I think ________________ most so far is the architecture.

2 . 令人惊喜的是，直到20世纪70年代，现代人才有人知道它们。
________________ no one in modern times knew about them until the 1970s.

3 . 你昨天在会上说的话让我们感到振奋。（what引导的主语从句）
___________________________________________________

4 . 这似乎是一件怪事：这位发展了共产主义的人竟然在伦敦生活过，并且在伦敦去世。
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5 . 阅读下面句子，在空白处填入适当的内容（1个单词）或括号内单词的正确形式（每空至多3词）。
1. _______ comes from abroad must have a medical test for new coronavirus pneumonia.
2. You haven't answered my question _______ I can attend the meeting tonight.
3. Evidence has been found through years of study _______ children's early sleeping problem is likely to continue when they grow up.
4. Doctors usually write exact instructions _______ the medicine is taken.
5. My washing machine _______（repair）this week，so I have to wash my clothes by hand.
6. He is known _______（spend）18 years fighting for slaves.
7. In the 1950s in the USA，most families had just one phone at home，and wireless phones _______（not invent）yet.
8. The day will come _______ we’ll win the final victory.
9. _______ everyone hoped，Mary has won the first prize.
10. _______（expose）to sunlight for too much time will do harm to one's skin.