Unit 5 vocabulary part of speech

Don't be ___________. Think before you act.

• impulse

• impulsive

• impulsively

It 's such a ___________ that you throw all the leftover away.

• wasted

• wastefully

• wasteful

• waste

We were deeply ____________ by this devastating tragedy.

• sadness

• sad

• sadden

• saddened

I spent a year in the jungle, ______________ how deforestation is affecting local tribes.

• to observe

• observe

• observing

• observed

By ______________ plastic bottles, we can lower the burden to the landfill.

• recycle

• recycling

• recyclable

• recycled

You should bring your own utensils instead of asking Mr Ho for (a)   (dispose) ones all the time.

Parents in Hong Kong are always (a)   (concern) about their children's academic performance.

The farmer was accused of (a)   (cruel) to animals.