30.Frank’s marriage to the billionaire’s daughter got him through his hardest time, ________ years later he wondered what he could have done differently 。
Whenever we are in ______ trouble, we should never lose______ heart.
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.