There are so many kinds of Mp3 in the shop. We can’t decide ________ . 

We should love our oceans and do something to            them .

 –Don’t______, my children！Keep trying and your dream will come true.–Thank you, Miss Fang. We will do our best.

—You should ________ your son. He works harder than before.—Thanks, I will.

Here on the bag it ______ that they were invented by a chef called George Crum.