— You look tired, you should have a good rest for _______ days.—That sounds good.

He hadn’t worked hard at his lessons．_______, he failed in the exam．

Thanks to the modern technology, we can get several times ________ information _______ people did in the past.

Whose math book is this?It     be      . Her name is on it.

There is no ________ over (在……上方) the river. We need to cross it by boat.