Write one word in each gap.
1. This program is very different ............ the one you're using at the moment.
2. Let's begin the lesson ........ a short test on the names of the different parts of an insect.
3. Disconnect your PC .......... the power supply before you take the case off.
4. There are a number .......... different way of doing this experiment.
5. How many types ........... building can you think of?
6. What were your reasons .......... choosing to do biology at university?

Match to make sentences
1. What's the diffirence
2. This box is full
3. This resulted
4. Connect this cable
5. I've had an idea
6. Could you fill this bottle
A. in us having to call the fire brigade.
B. to that piece of equipment over there.
C. about how to do this experiment.
D. between H2O and H2SO4?
E. with water?
F. of old camping equipment.