Choose the best answer A, B, C or D to complete the following sentences
My mother felt very nervous on the plane because she ___________before.
-
A.
doesn’t fly
-
B.
won’t fly
-
C.
didn’t fly
-
D.
hadn’t flown
Kiến thức: Thì quá khứ hoàn thành
Thì quá khứ hoàn thành diễn tả một sự việc đã xảy ra và hoàn thành trước một hành động khá trong quá khứ.
Dấu hiệu nhận biết: felt (thì quá khứ đơn) và before (trước đó)
Cấu trúc thì QKHT dạng khẳng định: S + had Ved/PP
My mother felt very nervous on the plane because she hadn’t flown before.
Tạm dịch: Mẹ tôi cảm thấy rất lo lắng khi đi máy bay vì bà chưa từng bay trước đây.
Đáp án : D
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