1 . The strange thing with three legs ________.

A．used to drink

B．is used for drinking

C．be used to drinking

3 . 这个盒子是用来做什么的？
What is this box ________ ________?

4 . — Now more and more people ________ posting articles and photos onto the WeChat (微信) to share with friends.
—Well, that’s why WeChat (微信) are more and more popular.

A．are used for

B．are used to

C．used to

D．use to

5 . —Most smartphones can be used ________ word processing.
—That’s true. My iPhone 8 is often used ________ a minicomputer.

A．for; for

B．for; as

C．to; as

D．to; for

6 . 这台机器被用来做什么？
What is the machine ________ ________?

7 . 护目镜用于保护你的眼睛。
Safety glasses ________ ________ ________ protecting your eyes.

8 . It is used to serve really cold ice-cream. （改为同义句）
It is ________ ________ ________ really cold ice-cream.

9 . The stamp is used ________ letters.

A．for sending

B．to sending

C．send

10 . —I ________ getting up at six and reading English for half an hour.
—It’s a good habit.

A．used to

B．am used to

C．used for

D．am used for