1 . The music, ________ which the active elderly were dancing, sounded a bit familiar to me.

A．to

B．from

C．in

D．at

2 . Mr Mike, to________ laboratory we paid a visit last week, will give us a report on how to choose career this evening.

A．who

B．which

C．whose

D．whom

3 . She was taking the food to the refugee camp, in ________ she distributed it to the children.

A．which

B．when

C．where

D．that

4 . Living in the desert involves a lot of problems, of______ the lack of water is the worst. (用适当的词填空)

5 . ______ a news report put it, when women joined the organization it took on a new look. (用适当的词填空)

6 . These are among the 669 children, most of ________ Jewish, ________ Nicholas Winton will go on to save from death at the hands of the Nazis.

A．them; whom

B．whom; that

C．whom; whom

D．them; which