Time goes by so fast . We must never miss the chance to show love for our parents and make them _____ how much they mean to us .
--- We'll visit the Summer Palace_______ there is a heavy rain tomorrow. --- OK ! Boating on the lake must be interesting.
You can try_______ second time if you fail_______ first time.
— I visited the Purple Mountain Observatory last Sunday.—______ Why didn’t you tell me earlier?
—What is your mother going to do this Saturday?—I’m not sure. She ______ go to see my grandmother.
The kind lady devoted all her life ______ those homeless children.