Why didn’t you try your best to get on the bus?—I tried to , but _______ I could, it started moving

Suggestions have been put forward ________ gunsshould be more strictly controlled in the USA.

How long have you been here？— ______ the end of last month，

I can’t bear the air pollution in this city anymore. It is getting worse and worse.— ________! We’ve never had so many chemical factories before.

In most homes, people cook meals in the _________.