Day 02｜2026年11月13日

When you travel to a foreign country, the first thing to do ______ to learn some basic local customs.

选择最恰当的选项补全句子。

Books ______ by this famous author are so popular among teenagers that they are often sold out in a few days.

提示：用 write 的过去分词填空。

The old professor, ______, as we all know, has devoted his whole life to science, was awarded the highest prize.

选择最恰当的选项补全句子。

The traditional paper-cutting art ______ from generation to generation for hundreds of years.

提示：用 pass down 的现在完成时被动语态填空。

With so many difficult math problems ______, the tired boy had to stay up late in his bedroom.

选择最恰当的选项补全句子。