Có mỗi 2 câu này thôi ạ, mn chỉ cần chọn đáp án là xong òi

5. 4. mainly / of/ Viet Nam / in / they/live/ the / Do/highlands / northern / ? A. Do they live in the highlands of mainly northern Viet Nam? B. Do the northern of mainly highlands Viet Nam they live in? C. Do they mainly live in the northern of highlands Viet Nam? D. Do they mainly li ...