They __returned__________ to Hanoi yesterday
They ____________ to Hanoi yesterday
A: Returned
B: are return
C: are returning
D: return
They ____________ to Hanoi yesterday
A: Returned
B: are return
C: are returning
D: return
They to HaNoi yesterday
Dấu hiệu thì quá khứ đơn => A. Returned.
Đáp án làk A: Returned. Có chữ yesterday màk!