Question 14: Jun Xiong __________ in class when Mrs. Khoo called on him to answer a question. A. daydreaming B. had been daydreaming C. has been daydr

Question 14: Jun Xiong __________ in class when Mrs. Khoo called on him to answer a question.
A. daydreaming B. had been daydreaming
C. has been daydreaming D. have been daydreaming

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  1. Question 14: Jun Xiong __________ in class when Mrs. Khoo called on him to answer a question.

    A. daydreaming

    B. had been daydreaming

    C. has been daydreaming

    D. have been daydreaming

    /Vì ở vế sau động từ call chia ở thì quá khứ đơn là called nên vế trước là sự việc xảy ra đồng thời nên cũng phải chia ở thì quá khứ, cụ thể là quá khứ hoàn thành/

    ~Xin hay nhất ạ~

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