下面加点字注音有误的一项是（ ）

Sixty percent of all Chinese are farmers and they are than people who live in the cities.

Must I go there right now, mum—No, you ____. You can go there tomorrow.

Jim’s brothers spent a whole day ________ in the aquarium. They forgot ________ back before ten o’clock.

We all ____ Yang Liwei, who is the first Chinese astronaut to take a journey to space.