It was the training _____ he had as a young man _____ made him such a good engineer.
Peter could hardly see the words on the blackboard, ________?
-------Which boy do you want to see now? -------The _______ in the red hat.
English is taught _________ a foreign language in almost all school in China.
He asked ______ they would hold the meeting _____ it rained the next day.
Would you please _______ fill the same bottle _______ full?