Test Science Unit 9 Solutions Pre-Int. 3rd ed.

Choose the correct answer.

I bought this digital _________ last week, but I’m disappointed with the quality of the sound.

I don’t like the ___________ on my new mobile – it’s not very bright.

The first thing you do with most gadgets is press the ________________________.

I couldn’t live without my _______________ – I love listening to music wherever I am.

Rewrite the sentence in the passive. Do not include the agent.

1 Companies make boxes out of cardboard because it’s a cheap material. Boxes _____________________________________________________________________.

Rewrite the sentence in the passive. Do not include the agent.

Builders won’t use concrete as much in the future. Concrete ___________________________________________.

Rewrite the sentence in the passive. Do not include the agent.

People will recycle plastic more in the future. Plastic ________________________________________.

Rewrite the sentence in the passive. Do not include the agent.

Someone discovered rubber many years ago in South America. Rubber _________________________________________________________.

Write questions using the prompts. Use the present simple, past simple, present perfect or future passive.

A (when / the telephone / invent) ? B In 1876.

2 A (which / languages / speak / in Switzerland) ? B German, French, Italian and Romansh.

3 A (how many / astronauts / walk / on the moon) ? B Twelve so far. Neil Armstrong was the first.

4 A (factories / replace / 3D printers / in the near future) ? B Probably not. They aren’t as effective yet.

5 A (who / the novel / Great Expectations / write / by) ? B By the British writer Charles Dickens. He also wrote Oliver Twist.