食物中的营养物质都要经消化后才能被人体吸收。（判断对错）

W：How are you?

M₁：I'm ____. What's wrong with you?

W：I want to send an ____. But I don't have a computer.

M₁：You can ask your teacher to help you.

W：Good ____！

W：Hello，Mr. Li. Could I use your computer?

M₂：Sure. It's there on your ____.

W：Thanks，Mr. Li. It's very ____ of you.

M₂：You're welcome.

关于我国季风的叙述，正确的是（    ）

读一读，选择相应的对话。

①  ____ 

②  ____ 

③  ____ 

④  ____ 

a. — Good afternoon!

   — Good afternoon!

b. — Hello! I'm Leo.

    — Hi! I'm Sally.

c. — Good morning!

   — Good morning!

d. —Goodbye!

    — Goodbye!