Ⅰ.Complete the English sentence according to the sentence given in Chinese.
（根据所给的中文完成句子。）
1.Our company _______ _______(过去经常)do business with theirs.
2.Some tea is left _______ _______ _______ _______ (底部) your cup.
3.Fireworks _______ _______(增添)the attraction of the festival night.
4.You do try to _______ _______ _______(躲开) trouble!
