一Why do you appreciate her help so greatly?一Because her donation makes it possible for me        the dog Lucky.

 When Daniel is in a bad mood, he likes to wear orange to _________.

一How long has Tom _______ Nancy? 一I don’t know. And I even didn’t know they ______ .

—What should I do to ____ healthy?—Try to eat a balanced diet.

—Why not ______ an English-English dictionary for yourself?—I have already had ________.