a pen,an eraser and a ruler 后面加is还是are

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a pen,an eraser and a ruler 后面加is还是are
this is apen(改复数) 2.those are my choes(改否定句) 3.what's mr fan

1.thisisapen(改复数)Thesearepens2.thosearemyshoes(改否定句)Thosearenotmyshoes3.what'smrfang(改同义句)WhatisMr.F

i l() in ottawa, c() .and i w() apen pal in china is a very

liveCanadawantbirthdayNovemberHowlongdoyouhavevolleyball?Howis再问：eataq()breakfast,thengotoschool.再答：

you should answer the paper in-------,not with------ Apen pe

选C.记住inpen/pencil;withapen/pencil,inink用in不加冠词,不用复数；用with要加冠词,可用复数.ink是个不可数名词,不加冠词.