- _______? - Since last week. (A) When did the pain start?(X) (B) How long have you had the pain? (C) Do you have the pain at night? (D) When did you first notice the pain?

1 câu trả lời

=> B

How long + have/has + S + V3/ed? (Bao lâu)

Since + mốc thời gian : kể từ khi (dấu hiệu thì HTHT)

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