Students ________ read more books because they can help them be better people.
A.must B.can C.may D.should
Have a glass of water, please. You ________ be thirsty after a long walk.
A.should B.must C.need D.could
Necessary action ________ be taken to protect the environment so that we can have a better world.
A.can B.must C.may D.would
It's a rainy day today. ________ you please bring the raincoat for me?
A.Must B.Could C.Need D.Can
(2018张家口桥东区一模) Sorry, I can't go shopping with you. I ________ take care of my little sister.
A.can B.may C.should D.have to
(2018湘潭改编) Did you see the sign "No Swimming"? You ________ swim in this river.
A.needn't B.mustn't C.won't D.mightn't
