（1）：itis___Englishcar.(2):itis___japanesecar.请完成以下句子,用冠词a,或an填空.
1.an2.a3.an4.a5.an6.a
举一反三
内容
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—Itis usefulbook.
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–Isthis_______pen? A: your;itis B: you;itis C: his;it’s D: her;isn’t
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Itis(polite)_____________toleavethetablebeforeeverybodyhasfinishedthemeal.
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Itis(simple)amatteroftime.
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Nevertrytomovethatdelicatepart;itis(move)______.