Ability |Possibility | Permission |M001102

When she was younger, she _______ run for miles without getting tired, but now her stamina isn't what it used to be.

• can

• will be able to

• could

• is able to

I'm not sure if I _______ attend the meeting tomorrow morning; it depends on whether my flight arrives on time.

• can

• couldn't

• was able to

• am not able to

The instructions were very complicated, so unfortunately, he _______ understand what to do.

• could

• can

• is able to

• couldn't

Excuse me, _______ I borrow your pen for a moment? I seem to have misplaced mine.

• am I able to

• could

• couldn't

• will I be able to

Most people _______ learn a new skill if they practice regularly and are patient with themselves.

• can

• couldn't

• weren't able to

• may

Despite the storm, the pilot _______ land the plane safely, much to the relief of all passengers.

• couldn't

• can't

• was able to

• isn't able to

You _______ enter this area without a valid permit; it's restricted for authorized personnel only.

• could

• cannot

• are able to

• might

If you finish your homework early, you _______ watch television for an hour before bedtime.

• couldn't

• weren't able to

• aren't able to

• can

Look at those dark clouds! I think it _______ rain very heavily later this afternoon.

• can't

• isn't able to

• could

• won't be able to

I'm afraid I _______ help you with this task today as I have too many other urgent commitments.

• cannot

• could

• was able to

• might