Question

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Answer 1

5. I think chemistry is as difficult as physics.

6. Planes are safer than cars.

9. Computers today are more powerful. They operate faster and they have much larger memories. Because they contain more electronics, the cases are bigger but the flat-screen monitors are less heavy and fit into a smaller space on your desk. Computers are also cheaper. The price is lower now than in the past. The programs too are better. They are more sophisticated and you can work much more efficiently.

10.

1. The Airbus is longer than the Boeing.
2. The Boeing is a little shorter than the Airbus.
3. The Airbus can carry a heavier weight than the Boeing.
4. The Boeing is faster than the Airbus.
5. The Airbus can fly farther than the Boing.
6. The Boeing can fly higher than the Airbus.