C. Had drived
D. Had been cycled
D. Had not been worked
D. Drived
D. Had singing
D. She learned
C. Had she learn
B. Had she been learning
Exercise 3. Chọn đáp án đúng.
0. They (cycle) in the morning so their legs were sore in the evening.
A. Had been cycle B. Had been cycling C. Had cy ...
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