The （秘密） of true friendship is to understand and to be understood．
Tickets for today？
Sorry， we've got left， but we have a few for tomorrow．
Before you start writing a story， think about the （人物）and what they do．
Amy and Annie will go on a natural history walk next （星期日）．
Miss Zhang （订购）a dress online two weeks ago， but it hasn't arrived yet．
He seems to have a （第六）sense for knowing that his brother will win．