--- What do you think of the book ?
--- Oh , excellent . It’s worth __________ a second time .

——Oh, I had a terrible toothache.
——You’d better    see a dentist and have your bad teeth     out.

Nobody knew who was the first ________ at school that morning when the window was broken.

Xiao Li was supposed __________ her homework before nine o’clock. But she couldn’t.

When the teacher came in, he saw some boys _______ behind Daniel, _______ the computer games.

If prices rise too high, the government has to do something __________ it.

________ the hospital, turn right when you come to the first crossing.

It takes 10-12 days ____ from the Earth to the Moon ____ rocket.

Water park is a good place          .

We are looking forward ________ a film next week.