题目内容：

(A) 根据句意和汉语注释，写出单词的正确形式。

1.They offer a ______ (个人的) service to their customers.

2.The problem weighed ______ (沉重地) on my mind the whole day.

3.Gao Xiaosong was arrested for drunk driving because it was ______ (违反) the law.

4.Mike ______ (后悔) having made the decision, but it was too late.