Safety Signs and Modal Verbs

Safety gloves ______________ be worn by electricians.

• must

• can

• should

• might

You ________________be very careful here, because there is risk of fire.

• can

• may

• should

• will

If you get hurt in the construction site, you _____________ want to use the first aid kit.

• might

• have to

• must

• could not

If you supervising or working on a construction site, you _______________ wear a helmet.

• could

• would

• should

• must

"You are not allowed to eat in here" = "You _____________ eat in here"

• may not

• shouldn't

• don't have to

• mustn't

"It is highly recommended that you pay attention to the electrical equipment" = You ___________________ pay close attention to the electrical equipment"

• could

• might

• should

• will

Fire assembly point is a place where people ____________ go in case of an emergency evacuation.

• might

• can

• will

• have to

You ____________________ be careful: Fork lift trucks are on operation.

• could

• should

• will

• might

You _______________ speak loudly in a library.

• won't

• can't

• don't have to

• might not

You ________________ stand clear of suspended load.

• should

• need

• would

• could