It is better for you to lose weight by taking exercise every morning.— I think your suggestion deserves ______. [ ]

It’s quite _____ of beginners to forget to use an article before a noun.

Mr. John was so humorous that we had a goodlaugh ______ the meal.

I am sorry, but there is no smoking room in this section on the train.— Oh, I______ that,and I won’t smoke again.[ ]

依次填入下列各句中横线处的成语，最恰当的一组是①面对棘手的问题，是派富有工作经验但魄力略显不足的老王去调解呢，还是让敢于担当但经验不足的小张去处理，张部长一时有些__________。②面对失控的中国楼市，如果我们__________，不能及时通过有力的政策调控促进房地产市场的理性回归，消除房地产市场的投机行为，那将是很危险的。③当改革进入到必须触及一些既得利益集团的阶段时，什么困难都可能遇到，这时候需要的是勇往直前、敢打敢拼的精神，决不能__________，犹豫彷徨。