Standards and rules must be set to keep order, make sure of justice and ______ individual rights, but do not contradict school policy.

Have you ever _______ to bring your homework to school—Yes. I _______ it at home once last term.

Some students interested in biology have _____________to the classroom with electric facilities.

Why is Jenny still standing there? It’s so cold.—She _____ for someone.

you sure you won’t come for a drink with us— _______, if you insist．