1.It is---------- not to spit in public places.

1.It is__________ not to spit in public places.A.a good manner B.good manner C.good manners D.the good manner2.A good sailor must be able to sail in_________.A.all the weather B.all the weathers C.all weather D.all weathers3.”___________makes perfect.” Is _________in learning any subject or skill in your life.A.Practice,a good advice B.Practices,a good advice C.Practices,good advice D.Practice,good advice.4.Walking along the __________,I saw the children building castles with______________.A.sands,sand B.sands,sands C.sand,sands D.sand,sand