Chọn đáp án đúng: While you enjoy ____ the Internet, be alet !
1. while you enjoy the Internet ,be alet !
A. responding B. surfing C. consuming D. waving
2 . Mai : " thank you very much " . - Lan : " "
A. you're welcome B. nothing C. not all D. yes , please
3. Did you walk to school last year ?
A. used B. used to C. use D. use to
4. " Could you do me a favor " : " "
A. no problem B. I can't C. yes , I could D . no , I couldn't
A. responding B. surfing C. consuming D. waving
2 . Mai : " thank you very much " . - Lan : " "
A. you're welcome B. nothing C. not all D. yes , please
3. Did you walk to school last year ?
A. used B. used to C. use D. use to
4. " Could you do me a favor " : " "
A. no problem B. I can't C. yes , I could D . no , I couldn't