1.Mary has collected many chinese st_____since she came here.
问题描述：
1.Mary has collected many chinese st_____since she came here.
2.They were so ex______at the good news that they jumped up.
3.it is not al____to speak loudly in public,so please keep down your voice.
答
1.stamps 邮票
2.excited 令人激动的
3.allowed 允许