下列各句，语言表达得体的一项是（ ）

You are saying that everyone should be equal, and this is _______I disagree.

If there is not any help, we can’t do it.

My English-Chinese dictionary isn’t in my schoolbag. Where _________ I have put it?

_______, I lost heart in English learning, but my teacher said to me, “Keep on working hard, and you’ll succeed ________.”