1 . _______ Queensland Rail makes every effort to ensure trains run as scheduled, there can be no guarantee of connections between trains or between train services and bus services. .

A．When

B．As

C．While

D．Since

2 . — What do you think of archaeology, Bob?
— I find it interesting and challenging. It is a subject ________ sometimes you may find yourself having conversations with your ancestors.

A．where

B．which

C．when

D．that

3 . ________ was the architecture design of Tianjin Binhai New Area Cultural Center Library.

A．What made her interesting most	B．What she was interested most
C．What was most interested to her	D．What interested her most

4 . We reached Quebec on the eighth day, ________ most people speak French.

A．where

B．which

C．when

D．what

7 . The Zhuang is an ethnic group________ the population is the largest of all ethnic groups in China.

A．of whom

B．of which

C．of who

D．of that

9 . ________is the power of global warming that the climate goes from one extreme to the other.

A．Such

B．This

C．That

D．So

10 . At the Chinese art festival, there are different stands ________ artists demonstrate their skills and teach the visitors.

A．where

B．which

C．that

D．when