Kids who have no idea ________ will pay the price sooner or later. A.what being polite means B.what does being polite mean C.what means being polite D.being polite means what
Don’t search my bookcase for your CD player!Just look where it ________ be-in the drawer, in your schoolbag, or somewhere else like that. A.may B.can C.must D.will
________ for computers is called computer programming. A.Writing instructions B.To write instruction C.The writing of instructions D.Having written instructions
It is not like Jack to be unfriendly, so he ________ you when you called. A.can’t have heard B.shouldn’t have heard C.mustn’t have heard D.needn’t have heard
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