Children should be regularly _____ to great works of art .A.shownB.givenC.exposedD.di

Some component parts should be replaced regularly because______.A．they are outdatedB．they

The medicines should be kept out of ________ of children.A.touchB.reachC.contactD.contra

Equipment should be tested and maintained for proper operation on a regular（).A、baseB

You should be more patient_____ your children.A.forB.ofC.with

Those of us who smoke should have______ lungs X-rayed regularly since we are all aware of

Children should be taught how to get along with ______.A.anotherB.otherC.othersD.any other