—Two months ______quite a long time. 　　—Yes, I’m afraid that he will miss lots of his lessons. 

There ________ some tomatoes and milk in the box, but now there aren't any.

---Did you go to the show last night?--- Yeah． Every boy and every girl in the area ____ invited．

(2011·江苏)The fact that so many people still smoke in public places ________ that we may need a nationwide campaign to raise awareness of the risks of smoking.

All we need     a small piece of land where we can plant various kinds of fruit trees throughout the growing seasons of the year.