His whole school education _____ only 2 years because of his illness.
I am very grateful for your assistance, and hope that one day 1 may be able to do something for you__________.
--- How are you _______ with your study at present? --- very well.
We should not _______ small mistakes, or they might lead to big accidents.
—Her father is very rich. —_______ She wouldn’t accept his help even if it were offered.
Life is like a long race _____ we compete with others to go beyond ourselves.