Modals of Ability and Future Possibility

Which modal verb is used to tell that someone that they are able to do something? 

• should
• would
• can
• must

Which sentence has a modal showing possibility?

• There are many cats that would make good pets.

• He will be at home tonight.

• It might rain tomorrow.

• We should take him a card.

Choose the modal that would best complete the following sentence if someone was asking for permission:

_________________ I sharpen my pencil?

• May

• Can

• Will

• None of the above

Choose the modal that shows a possibility and would best complete the following sentence:

We _________ be late for the party if you don't hurry!

• Should

• Can

• Would

• Might

Select the modal that gives permission and best completes the following sentence:
You ______________ borrow my favorite book.

• Might
• Would
• Must
• Can

_______ you help me with these bags, please?

• could

• must

• might

• should

Paula______ turn the light on because there was no electricity.

• wouldn't

• might not

• couldn't

• may not

Which of these sentences refer to possibility?

• I might be late because of the traffic.

• She's definitely going to get a 10 in Mathematics.

• He could try harder.

• You mustn't walk on the grass.

We might go swimming if it's warm enough. Is this...

• obligation?

• possibility?

• advice?

• request?

Our son promised to clean his room, but it is still messy. He _____

• couldn't have cleaned it.

• cannot clean it.

• couldn't to have cleaned it.

• can't clean it.