---He didn’t catch the train, did he?-- _________, because he was caught in the rain.
For everyone’s safety,we _______ a1ways remember the law against driving after drinking.
Linda, with her parents,_______ the Wolf Hill, and they will be back this afternoon.
Wearing white can help people _______when they feel stressed.
David didn’t give up ______ he had failed in the experiment four times.
一Look! That teacher is explaining something to her students again and again! 一_______teacher she is!