Make sentences as in example. Use the correct form of the verbs.
Equipment Function
1. demand valve ---> control the flow of oxygen to the diver (for)
2. cylinders ---> store oxygen under high pressure (used to)
3. contents gauge ---> indicate the amount of oxygen in the cylinders (present simple)
4. cylinders ---> transport oxygen with the diver (used for)
5. depth gauge ---> indicate the depth of the water (designed to)
6. buoyancy jacket ---> support the diver in the water (for)
7. diving mask ---> allow diver to see clearly under water (designed to)
8. contents gauge ---> a kind of alarm clock for the diver (act as)
9. demand valve ---> supply oxygen to the diver when he or she needs it (present simply)
10. buoyancy jacket---> a very strong lifejacket (act as)
Example: 1. The demand valve is for controlling the flow of oxygen to the diver.