下列各句中，加线词语使用恰当的一句是(　　)

English language, sentence stress is like wordstress and is _________ gives English its rhythm

Are they good at ________

Peter, set down the result of the experiment, ______?– Oh, yes, but I need to find my pen first.

I missed the beginning of ________ cartoon The Lion King.—What a pity! You should leave school half _______ hour earlier.