—_____chapter in Oxford English often consists of four parts．—That’s right．And this chapter mainly talks about ____

—_____chapter in Oxford English often consists of four parts．—That’s right．And this chapter mainly talks about _____environmental problems．

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He has______ unusual chair. It is like ________ “h”.

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an , an

an ,a

a , an

a , a

－Do you know______ man in white? －Oh, he is_________ scientist from America.

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a; a

a; the

the, a

the; the

－How long does it take us to go to your school from here?－It takes us        hour or more to go to my school by         bus.

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an; a

a, an

an, /

a, /

Lucy likes playing        guitar, but Lily likes playing        chess.

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the; the

/ ; the

the; /

---This is         story I’ve told you about several times.---It’s great. I’ve never heard      more moving one.

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the, a

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