Joe is able to swim. Joe --- swim.

• can

• will

• might

• could

A student wants to ask a question to a professor. "--- I ask a question?"

• Shall

• Would

• May

• Can

Ben is giving advice: You --- take the opportunity.

• must

• might

• will

• should

A team member is making a positive suggestion, "We --- take a break."

• could

• would

• must

• may

The team leader discusses what is necessary to be done: "You --- leave a comment after a class."

• will

• must

• might

• should

The team leader advised against sleeping: "You --- not sleep during working hours!"

• should

• will

• can

• must

The teacher talks about a general possible statement: You --- learn English while having fun!

• may

• can

• could

• must

You are giving permission to your student in a formal way: You --- read silently.

• will

• may

• might

• should

In the library, you are reminding noisy students: You --- be quiet!

• should

• can

• must

• may

Can I borrow your chair? Who is the person talking to?

• friend

• boss

• supervisor

• professor