When a pencil is partly in a glass of water, it looks as if ＿＿＿＿. 

No student      go out of school after eleven o’clock at night without the teacher’s permission.

It is strange that such a thing____ in your school.

—Will you read me a story, Mummy? —OK. You _____ have one if you go to bed as soon as possible.

 He commanded that all the gates _____when it was getting dark in case thieves came in .