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Câu hỏi: Mark the letter A, B, C, or D to indicate the correct answer to each of the following questions.
She had owned the telephone for 5 years __________ a new smartphone.
A. until she decides to buy
B. when she was deciding to buy
C. before she decided to buy
D. after she had decided to buy
She had owned the telephone for 5 years __________ a new smartphone.
A. until she decides to buy
B. when she was deciding to buy
C. before she decided to buy
D. after she had decided to buy
Kiến thức về dấu hiệu nhận biết của thì quá khứ hoàn thành:
Thì quá khứ hoàn thành thường được dùng kèm với các giới từ và liên từ như:
+ Until then, by the time, prior to that time, before, after, for, as soon as, by, ...
+ Before, after, when by, by the time, by the end of + time in the past …
Thì quá khứ hoàn thành thường được dùng kèm với các giới từ và liên từ như:
+ Until then, by the time, prior to that time, before, after, for, as soon as, by, ...
+ Before, after, when by, by the time, by the end of + time in the past …
Đáp án C.