1 . You should be________ (谨慎) about what you say in public.

2 . The government must be very ________ about setting policies and make no decision until they are quite sure it is the right one.

A．serious	B．concerned
C．cautious	D．nervous

3 . A healthy life is frequently thought to be ______ with the open countryside and home-grown food.

A．cautious

B．associated

C．blessed

D．related