Every possible means ________ to prevent the air pollution, but the sky is still not clear. [ ]

the instructions on the packet when you take the drug and the drug, I think, will work soon.

Oh, it’s my schoolbag. Thank you very much! – _ _ _ _ _

Mary, let’s go to the bookshop this weekend. Will you be ______?— Sorry, but I’m going to visit my uncle in the countryside.[ ]

I’m sorry that I shouldn’t have been soangry with you— You ____ angry but that’s OK