Subject: Can you help?            

From: Rose

Dear Knowledgeable,

    I have a good friend, Ann. She is very clever and can speak English really well. A very important English speech contest for our whole city will be held next month. Our classmates all think Ann is the best person to represent the class in the school contest and make sure she will win. But the problem is that she's very shy and that she's terrified of speaking in front of other people.

    She can't tell others about it, because she doesn't want to let her friends down. I can't think of any good advice to give her, but you always come up with good solutions to people's problems. Can you give us some good advice？Do you think we can tell the truth to the rest of the students?

Yours,

Rose

照样子完成下列各句。

①他常常一边在山坡上放牛，一边帮助八路军放哨。

____常常____。

②毽子一点儿也不听话。

天气一点儿也不____。

____一点儿也不____。

③苹果、葡萄、桃子和香蕉都是水果。

____、____、____都是蔬菜。

____、____、____都是____。

____是我国现存规模最大、保存最完整的皇家园林；____是最有老北京风情的街巷。

化学实验室现有质量分数为98%的浓硫酸，但在实验室中常需要用较稀的硫酸．请回答下列问题：