1 . May 30, 2023 is a memorable day, ________the Shenzhou XVI manned spaceship was launched successfully. （用适当的词填空）

2 . 每年五月的第二个周日为母亲节，那天孩子们向母亲表示感恩和爱。(celebrate)(汉译英)

3 . In the U. K. , from August to October 2021, ________ the Delta strain was prevalent, the country reported 16 COVID-19 deaths per 100, 000 people. (用适当的词填空)

4 . Do you believe a sneeze in the morning can kill you in the afternoon? This happened in 1918, ________ a deadly form of influenza swept across the world. (用适当的词填空)

5 . 早在古埃及，园艺活动就用于医疗，当时的医生让暴躁的病人种花养草。(…when…) (汉译英)

6 . So I would love to see the lack of award recognition for Asian actors be a thing of the past, ________ there was a norm(社会准则)that you couldn’t see faces like ours up there being nominated and being given equal opportunity to play those roles. （用适当的词填空）

7 . The film tells a story happening in the year 1921, ____the Communist Party of China held its first National Congress in Shanghai and Jiaxing, Zhejiang province. (用适当的词填空)

8 . 碧空如洗的秋天是用望远镜观察这类老鹰习性的最好时节。(when)(汉译英)

9 . But right now, we are in a socially awkward time of handshake uncertainty, ________ some people are comfortable shaking hands and some are not. (用适当的词填空)

10 . On the eve of the Spring Festival, I usually stay up until midnight, ________I can set off the firecrackers and fireworks.

A．which

B．when

C．where

D．who