How does your brother go to school? He usually _________ to school.

It  is better to ____ the lights before you leave here.

If you don’t work hard for most of the year and then work hard for only a few days before the exam, you will probably     .

－Excuse me, does Mr Smith’s son live here?－He _________ be here, but he has moved.

 Look, the set of keys  _         _  on the teacher's desk.