—Final exams are forcing many students to bum the midnight oil． —That's true，but          late has a bad effect on their health．

Ann used to          here. But now she is used to         in Beijing.

---Do you need any help with the box?  ---No, thank you. I can _____ to make it.

 We don’t know if it     .If it     ,we won’t go out for a walk.

－ Mum, why _______ some water?－ Good idea. I am feeling a little thirsty.