He argued _______ smoking, and insisted that it was ________ argument that smoking was harmful to health.

I’m going to be late for work. There’re ＿＿＿ buses on this route(线路).

collection can helpmake money.

_____you do, don’t miss this exhibition, for it’s so hard for me to get the tickets.

What are you doing now? –I’m _____,Mum.