1 . First constructed in the 10th century as a part of a villa, the garden of Keyuan in Suzhou, Jiangsu province, was rebuilt and renewed on numerous occasions ________ history until it became a Confucian academy in 1805. (用适当的词填空)

2 . ________a cold winter morning, I met her in the street.

A．In

B．On

C．At

D．For

3 . I'm going out. I'll be back________ an hour.

A．at

B．on

C．in

D．from

4 . 组织者考虑周到，在活动前说清楚活动规则以及需要带的必需品。（it作形式主语，considerate，clarify，necessity）（汉译英）

5 . The author thought_______________ and said, “Thank you for your criticism, but I have a request.” (用moment短语完成句子)

6 . （2021年北京卷）While riding his bike home ________ a cold night, he came across a sad-looking elderly woman wandering the streets by herself.（用适当的词填空）

7 . 标出下列句子的状语成分
1. Tianwen 1 landed successfully on Mars recently.
________________________________________
2. Unfortunately, we must put off the match.
________________________________________
3. This problem is extremely hard.
________________________________________
4. I have been in Kunming for many years.
________________________________________
5. Let’s meet in the school tomorrow morning.
________________________________________

8 . The survey shows that roughly three-quarters of the 86 tree species surveyed have shifted their population centers westward ________ 1980. （用适当的词填空）

9 . It began on January 19 and finished ________ the early morning of January 20. (用适当的词填空)

10 . Many adults report that even when out in nature, they ________ not take the time to admire a spectacular mountain ________ pulling out their smartphone to take a picture.

A．may … before	B．may … after
C．should … before	D．should … after