OVER THE PAST DECADE, CHARITABLE ORGANIZATIONS ____________ A LOT TO MAKE PEOPLE CHANGE ATTITUDES TOWARDS DISABILITY ISSUES AND THE DISABLED

Tiếng Anh Đề thi HK1 Tiếng Anh 11 năm 2018 – 2019 trường THPT Nguyễn Trãi – Hà Nội -

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7. Over the past decade, charitable organizations ____________ a lot to make people change attitudes towards

disability issues and the disabled.

A. have tried

B. tried

C. had tried

D. were trying