1 . The famous National Stadium or “Bird’s Nest” is the centerpiece of the park, ________the opening and closing ceremonies of the 2022 Beijing Winter Olympics were hosted. （用适当的词填空）

2 . 他重游故居，不禁回忆起许多美好的回忆。(bring) (汉译英)

3 . I know I’ve put my passport in a place ______ I thought it would be safe, but now I can’t remember it.

A．which

B．that

C．where

D．what

4 . 一般说来，交通繁忙的十字路口可能会发生交通事故。(happen) (汉译英)

5 . The exhibit also includes an interactive, immersive unit ________ visitors may click a mouse or use their fingers on a touch screen to change digital versions of the artwork. （用适当的词填空）

6 . She was taken to a hospital ________ doctors found she had broken a bone in her upper leg.

A．when

B．which

C．what

D．where

7 . Keep the things you’ll need during the week in a safe place ________ you can easily find them.

A．from which

B．that

C．which

D．where

8 . As we explore the world in greater depth, we may reach a point ________ it is impossible to run an experimental scenario in the real world due to physical, ethical or financial limitations. (用适当的词填空)

9 . The shocked and angry driver stopped for a while and then drove the car back to the spot ________the brick had dropped and dialed 110.

A．that

B．which

C．when

D．where

10 . That said, to be honest the only people who ever ring our home phone are our Baby Boomers parents, to the point ________we play a game and guess who is calling before we pick up the phone (using Caller ID would take the fun out of it).（用适当的词填空）