1 . The journalist echoed the villagers’ doubt in the newspaper _________ the tourist resorts would really benefit the local economy. (用适当的词填空)

2 . There is evidence________acupuncture began during the Stone Age, when stone tools called bian were used to press areas of the body. (用适当的词填空)

3 . The employers have reached some consensus as to workers from different positions ________ their workers can be offered many carrots, such as training abroad, and yearly bonus.

A．when

B．where

C．that

D．who

4 . Happiness is a feeling ________ there is always something or somebody lighting up your eyes and making you want to sing for no reason.

A．when	B．which
C．whether	D．that