I ______ have worried before I came to the new school, for my classmates here are very friendly to me.
A：mightn't
B：mustn't
C：needn't
D：couldn't
病句门诊。将正确的句子写在横线上。
①满山遍野都是芳香扑鼻的、鲜艳美丽的小草。
②我们面带微笑，笑眯眯地欢迎来我校视察的领导。
③今天是晴朗的一个夜晚。
根据录音，判断句子是否正确。I didn't like dogs before，but I'm happy to have one now.
