当消费者的合法权益受损时,消费者可以维权的途径有( )①与经营者协商和解或请求消协进行调解②在网上造谣陷害商家③向有关行政部门申诉或提请仲裁机构仲裁④向人民法院提请诉讼
---Can I help you? ---Yes, I bought this radio here yesterday, but it _____________.
He looked very confident and calm during the test, but __________ he was extremely nervous.
It was a cold winter night, and there wasn’t anyone __________the boy could turn for help in the street.
___________for his good skill, this doctor has a lot of visitors calling for help all the time.
The harder you__________, the better progress you ___________.