南宋都城东京有许多娱乐兼营商业的场所，叫做“瓦子”。
错误：____
理由：____
“侏儒症”的病因是（ ）
写出下列名词的复数形式。
①May I have some ____ (plum), please? Sure.
②There are seven ____ (boy) in the playground.
③The woman has two ____ (baby).
④How many ____ (peach)? There is only one.
⑤There are two ____ (library) in our school.
