.Catherine bought a postcard of the place she was visiting, addressed __________ to __________ and then posted it at the nearby post office.
We all know that, __________, the situation will get worse.
—Can I join the club, Dad?—You can when you _____ a bit older.
If you are in any doubt as to _____ you should be doing these exercises, consult your doctor.
—When can I come for the photos? I need them tomorrow afternoon.—They_______ be ready by 12:00.
Was it _____ she heard with her ears ____ really made her frightened?