Nowadays，scientistsare working hard to find a best way of treating addictions ________ drugs.

Listen! Can you hear a man ________

Does she any pencils—Yes, she three pencils.

The difficulty she had _____her three children was solved by the local government.[ ]

So,youdidn’ttakehisadvice?— No._____hisadvice,I_____suchasillymistake. [ ]