1) considerable progress/ happy/ Our parents / all of us / to hear/ had made / were/./. ---->........ 2) Ho Chi Minh City /is/ The Independence Palace/a/ historic site / famous/in/ ---> ...... 3) their remote controls / by using / question about/ can ask/ viewers/ the show/. ---->..... 4) electroic junk mail/ have to suffer from /or/ spam / various risks/ sometime/ such as / Internet users/./ ------>......

His young sister studies English very well. ---->His you sister is....

Vẽ sơ đồ nguyên lý và sơ đồ lắp đặt gồm 1 cầu chì ,2 công tắc hai cực điều khiển hai đèn sáng độc lập