1 . The top ten competitors will have the opportunity to compete in the second round, _______ they will be required to deliver a speech on a given topic.

A．which

B．what

C．where

D．that

2 . The 2022 World Cup was held in Qatar, ______football is the most popular sport.

A．where

B．which

C．that

D．when

3 . In the middle of the woods       a deep lake,       you can find various fishes.

A．lie, where

B．lies, which

C．lie, which

D．lies, where

4 . 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

5 . Nanshe Ancient Village has unique scenery. I stayed there with my family last year. (用定语从句合并)
________________

6 . My hometown has taken on a new look. I spent most of my childhood there. (定语从句改写)
My hometown has taken on a new look, ________I spent most of my childhood.

7 . In the future, AI will be used in the hospitals, ________ it can simplify the lives of patients, doctors and hospital administrators.

A．when

B．about which

C．where

D．of which

8 . The picture often reminds me of the happy hours, ________ I was playing happily with my friends.

A．how

B．that

C．when

D．where

9 . Close your eyes and picture the future, ________ you've made your dreams come true.

A．which

B．what

C．that

D．where

10 . He grew up in a small village, ________ there was a river.

A．that

B．which

C．when

D．where