he is very young, he can do many things.

I stood there patiently until he ________ his work

依次填入下列各句横线处的成语，最恰当的一组是（ ）①阿里巴巴与苏宁联手，显然直指京东。不过，短期内两者的协同效应未必能够迅速体现出来，两者在未来究竟能擦出怎样的火花，让我们 。②10日一早，长江下游暴雨倾盆，江苏气象部门拉响各地的23个暴雨蓝色预警，防汛、应急、海事、交通、路政、城建、农林、民政等部门 。③电视剧《琅琊榜》根据海晏同名小说改编，囊括了“凄美爱恋”“手足情深”“国仇家恨”等精彩看点，众小说迷们 。

They had a pleasant chat ________a cup of coffee.

It’s winter now. We should stay away from cold _______doing sports every day.