It is _____that he has been addicted to thedrugs and has difficulty quitting it.

You _______ call him if you want to, but you _______, for he’ll surely come here soon.

－ How was _______charityshow － It was _______bigsuccess.

The cave is _____to the public, high up the face of a cliff which no one can climb. [ ]

Jack’s mother was twenty-seven when he wasborn. Jack is eleven this year. How old is his mother?