单项选择题
A.good B.bad C.deadly D.healthy
23()A.depend onB.get rid ofC.live offD.fight against
单项选择题23()
A.depend on B.get rid of C.live off D.fight against
22()A.StayingB.LivingC.SleepingD.Surviving
单项选择题22()
A.Staying B.Living C.Sleeping D.Surviving
21()A.gunB.watchC.telescopeD.compass
单项选择题21()
A.gun B.watch C.telescope D.compass