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Mark the letter A, B, C or D to indicate the correct answer to each of the following questions
Câu hỏi:All of the plants now raised on farms _______ from plants that ______ wild.
- A. had been developed – once were grown
- B. have been developed- once grew
- C. have been developed – have grown
- D. had been developed – once grew
Lời giải tham khảo:
Đáp án đúng: B
Vế đầu đang diễn tả một hành động đã và đang xảy ra trong hiện tại (từ lúc bấy giờ) nên không thể chia nó ở dạng thì quá khứ hoàn thành được – thì này để diễn tả một hành động xảy ra trước một hành động khác trong quá khứ
→ Loại A, D
Vế hai, căn cứ vào “once” là dấu hiệu của thì quá khứ, do đó không thể chia vế hai ở thì hiện tại
→Loại C
Tạm dịch: Tất cả những cây được nuôi trong các nông trại ngày nay thì được phát triển từ những cây đã từng mọc hoang dại
Câu hỏi này thuộc đề thi trắc nghiệm dưới đây, bấm vào Bắt đầu thi để làm toàn bài
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CÂU HỎI KHÁC
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- Indicate the word that differs from the other three in the position of the primary stress: confidence, celebrate, effective, handicapped
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