A waitress served us. She was very impolite...
Câu hỏi: A waitress served us. She was very impolite and impatient.
A. A waitress, who served us, was very impolite and impatient
B. A waitress, which served us, was very impolite and impatient
C. A waitress who served us was very impolite and impatient
D. A waitress whom served us, was very impolite and impatient
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