Exercise 81.2: By/ for/ to

Fill in the blank with by, for or to.

Example: A scale is ____ measuring weight.
Answer: A scale is for measuring weight.

1. This key here is ____ opening the office door.

2. Medical students work in hospitals ____ get experience.

3. What did you do that ____? Now we'll never find it.

4. A thermometer is used ____ measure the temperature.

5. A thermometer is ____ measuring the temperature.

Unit 81