Question

My mother told me she _______ very tired since she came back from a visit to our grandparents.

A. was

B. had been

C. is

D. has been

Answer 1

Đáp án: B

Giải thích: HTHT since QKD, câu gián tiếp.

Dịch: Mẹ tôi kể với tôi rằng bà đã rất mệt kể từ khi trở về từ nhà ông bà.