用恰当的介词、连词或aware的恰当词性填空。

1. Also when you set your goals in a particular way you are able to make yourself continuously aware ____

    situations that will bring you nearer to your goal.

2. The principal didn't seem to be aware ____ there should have been so much dispute about the decision.

3. Health officials throughout the world have tried to make people raise ____ about AIDS.

4. Mike seems ____ of the trouble he's causing, otherwise he would stop it.

将铁粉和铜粉的混合物投入到硝酸银和硝酸锌的混合液中，充分反应后，过滤，在滤渣中滴入盐酸有气体产生，则滤渣中一定含有______，滤液中一定含有______和水．