一Herry! National Day is coming…一 Just occupy yourself in your study．

You behungry after the long walk. Help yourself to some cakes.

It won’t be long _______ we find out all the information for the new computers.

Astronaut as he was, he didn’t know _______ he had to _______ in outer space.

下列划线成语使用不正确的一项是（ ）