47. B (offered sm/offered to do st)
48. D (don't think sm is + nationality. Sm doesn't speak + nationality ⇔ sm can't be + nationality because sm doesn't speak + nationality)
49. C (Câu điều ước ở quá khứ/wish sentence in the past)
50. C (sm do st. st start/begin to + V ⇔ sm do st when st start to/begin to + V)
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@moon
#Kimetsu no yaiba#