语知识运用的第一节：单项填空从A、B、C、D四个选项中，选出可以填入空白处的最佳选项。Baird invented _________ television,_________ invention that would later completely change people’s life.

I once worked for a travel magazine for one year and the helped me get a job as a reporter.

th this fiercely competitive society,_____English well and you will succeed

In the questionnaire, the subjects are questioned whether they______ banning cars in the city center.

The baby, _____health was ruined after taking the medicine, was only one year old.