题目

--- I don’t know whether I should accept the invitation to join Microsoft or get my master degree first.   ---- Don’t hesitate _______ will you get such an opportunity.   A. and never again            B. or never again           C. and where                D. or where 答案：B －I think you should be more careful with electricity in future． －________． [　　] A．No, we should B．Oh, we will C．You may think so D．It’s up to you