读一读，把左右两边英语与数字连起来。
①six and nine ________ ________ a 90 A nineteen
②thirteen and eight________ ________ b 87 B twenty-one
③fifteen and four________ ________ c 15 C ninety
④eighty and ten ________ ________ d 19 D eighty-seven
⑤seventy and seventeen ________ ________ e 21 E fifteen
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