I only called the police when I ________ everything else.
Which of the folloing is NOT included in the fabled Five Mountains in China?
Will you send us _____ return mail pamphlets and price list ____ your exports?
One of the disadvantages in the Grammar-Translation Method is that the texts are taken from _____, the language of which doesn't often meet the practical needs of the learners.
We refer ___ you letter of May 2.
