Choose the correct article (a,an,the) to complete each sentence. Giải thích giúp em nhéee ----- Nội dung ảnh ----- 3. It is believed that ___ key to solving ___ complex issue lies in ___ understanding of ___ historical context of ___ problem as well as ___ ability to innovate.
4. ___ committee members agreed that ___ economic strategies suggested by ___ leading economists would need ___ careful examination before implementation.
