She brought with her three friends, none of ________ I had ever met before．

A．them

B．who

C．whom

D．these

George was responsible for the accident because he didn't give a ________ to other drivers．

A．notice

B．signal

C．symbol

D．mark

His father sent him to Paris to study law, but ________ he developed his love for the theatre．

A．besides

B．instead

C．moreover

D．therefore

Eating too much fat can ________ to heart disease and high blood pressure．

A．devote

B．attend

C．contribute

D．turn

Look out! Don't get too close to the house ________ roof is under repair．

A．whose

B．which

C．of which

D．what

The little girl showed no anxiety before the competition．She seemed ________ for it pretty well．

A．to prepare

B．to have prepared

C．having prepared

D．to be preparing

________ I cannot understand is ________ she wants to resign her present job．

A．What; why

B．Which; how

C．That; why

D．What; which

________ fired, your health care and other benefits will not be immediately cut off．

A．Would you be

B．Could you be

C．Should you be

D．Might you be

I looked at it and found that including the wine, the bill ________ ＄70．

A．arrived at

B．got to

C．reached at

D．came to

________ the children to bed, she began to correct the students’ exercises．

A．Sending

B．Being sent

C．Sent

D．Having sent