下列各句中横线的成语使用，全都正确的一项是（ ）①“两会”召开期间，各地代表云集北京，对记者接连不断地提问，与会代表们均不胜其烦地一一给予耐心解答。②学习雷锋应该成为一种全民化的行为，当我们看到他人需要帮助的时候，要当仁不让，勇敢地伸出援助之手。③北京金隅慧眼识才，将马布里招入帐下，马布里为报知遇之恩而效犬马之劳，帮助球队夺得了CB

When could you have a get-together with me?-Whenever it is____to you.[ ]

In the past ten years, there have been many changes in family life.— Are these changes ______?

________ of them has his own opinion.

The number of pages in this dictionary _______about two thousand. [ ]