--What can I do for you?

--I'd like to buy a dictionary for my sister, _______ at a proper price but of great use.

[　　]

--I had meant to be here on time.

--But you _______ late again.

[　　]

--How did Tom make a living in the old days?

--He went from door to door, ______ waste paper.

[　　]

We can learn a lot about him _______ watching his body language.

[　　]

You should speak louder to make yourself ______ by others.

[　　]

The gesture, _______ your index finger in front of your mouth, means“you should keep silent”.

[　　]

The new building ________ in our school is for us students. Though there is noise most of the day, we still feel happy about it.

[　　]

--Why do you want to leave?

--Because I am ________.

[　　]

--Where can I find the answer?

--You can find the answer ______ the exercise at the end of this book.

[　　]

--How did you get to my office so quickly?

--I entered the building ______ the side door.

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