---Don’tlittertheground,boy!Lookatthesign:Rubbish______intothedustbin.

发布时间：2020-08-06 20:22:05

---Don’t litter the ground, boy! Look at the sign: Rubbish ______ into the dustbin.---Sorry.A.has throwB.was throwC.must throwD.must be thrown

网友回答

D解析此句考查的是含有情态动词的被动语态，故选D。
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