1 . When I went back to my hometown years later, I saw a beautiful park, ______ had been a wasteland for many years.

A．that

B．who

C．when

D．which

2 . The ant runs          its own body every second, ________ it is quicker than an Olympic 100-meter runner.

A．as 108 times as long; meaning	B．108 times longer than; which meaning
C．108 times the length of; which means	D．108 times how long; meaning

3 . Having a mix of male and female nurses also helps create a fun atmosphere, _________ helps patients recover faster.

A．this

B．that

C．which

D．where

4 . The camera has a lot of small buttons, ________ makes it rather awkward to use.

A．that

B．what

C．as

D．which

5 . The biggest challenge at the initial phase was to persuade people to work for me, ________ was totally outside my experience.

A．what

B．that

C．which

D．who

6 . The book won’t be published until next year, ________ is disappointing.

A．which

B．when

C．why

D．that

7 . The news came________the British Queen Mother celebrated her 101^st birthday in good health,________isn't surprising, because she lives an easy life and gets the best medical care.

A．when; as

B．which; which

C．that; that

D．that; which

8 . After a 57-day hiking, the explorers finally reached a place, ________ they believed was the South Pole.

A．which

B．where

C．that

D．as

9 . Zhurong is the god of fire in ancient Chinese mythology,________echoes with the Chinese name of the red planet, Huoxing.

A．which

B．that

C．when

D．where

10 . Communication technology has entered the 5G era,________will surely bring great changes to our life.

A．when

B．what

C．which

D．where