⑴ninety pens A.你有多少本书？
⑵one-hundred pencils B. 有多少本书？
⑶How many books do you have? C.我们又九十支铅笔。
⑷How many books are there? D.九十支钢笔
⑸We have ninety pencils. E. 一百支铅笔
