If you _______ in behaving in this way you will bring yourself nothing but trouble.
A、continueB
continue一般不与in搭配，常见的是continuetodosth。decide也多与to搭配。另一方面，从词义来看，continue意思是“继续”，decide意思是“决定”，react意思是“反应，作出反应”，都与句意不相符。只有persist无论是从搭配还是从意思来看都是最佳答案。
—You were brave enough to raise objections at the meeting.
— Well, now I regret ________ that.
In the last twenty years, breakthroughs in technology have _____ advanced the way we communicate, bringing us computers, cell phones and the Internet.
We are waiting ______ your reply ______ our letter.
It was _____ and she did not know enough to analyze each problem properly.
We have made ____ that we would accept terms for your present order.
