如图为革兰阳性细菌的细胞壁/膜结构，其中1～4分别为()

A．N-乙酰葡糖胺，N-乙酰胞壁酸，蛋白质，磷脂

B．N-乙酰胞壁酸，N-乙酰葡糖胺，蛋白质，磷脂

C．N-乙酰葡糖胺，N-乙酰胞壁酸，磷脂，蛋白质

D．N-乙酰葡糖胺，磷脂，蛋白质，N-乙酰胞壁酸

E．磷脂，蛋白质，N-乙酰胞壁酸，N-乙酰葡糖胺

请根据句意和汉语提示写出下列各句中单词的适当形式。

小题1:I think math is _____________(困难的)，so I dislike it.

小题2: Where is ________(杰克的) radio? It’s on the table in his room.

小题3: Whose ___________(排球) are these? They are hers.

小题4:“Look at your room, Tom! Your books are__________(到处)！”mom says angrily.

小题5: Do you like__________(听) to music?