He asked me where I ______________.
Đáp án đúng là: D. studied
Giải thích:
Đây là câu tường thuật. Khi tường thuật câu hỏi có từ để hỏi, ta lùi thì của động từ. Vì câu hỏi gốc ở thì hiện tại đơn, nên khi tường thuật ta lùi về thì quá khứ đơn.
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