根据句子意思,用括号中所给单词的正确形式填空。Thank you for ______(give) me the picture of Li Yuchun.My twin brother often ____(dress) up as a cool boy.I’d like ______(drink) some black tea.Wang Ping has two ______________(knife).He can lend one to you.The ______________(数量) of the students in our school is 2800.