The days are gone _______physical strength was all you needed to make a living.
Jennifer, who is my best friend, said she would go abroad for further education __________.
A good teacher should leave some time for the students to _________ the knowledge.
There is no doubt that a small child has to learn to keep its _________ before it can walk far.
The reason why Daisy eats so little is that she is _________ a diet and she is trying to _______ weight.
-Hello, Mr. Wang. Must we wear the school uniform tomorrow? -You ___________. Only on Mondays. Tomorrow is Tuesday.