依次填：
wear keep quiet
We always have to【wear】school uniforms and【keep quiet】in the classroom.
句型have to do sth：不得不做某事 keep quiet：保持安静第二个空为什么不填be quiet 原因，求解答因为一般我们翻译“保持安静”就用“keep quiet”，基本不用或很少用be quiet 祝你开心