[ Tenses ]
By the end of this year, I ______ at this school for five years.
A. worked
B. will have worked
C. have worked
D. had worked

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Vocabulary › ViewWhich of the following medical conditions is characterized by difficulty in breathing, caused by inflammation of the airways?
A. Expedition
B. Professional
C. Asthma
D. Equality
Grammar › View
He (not live) ________ in HoChiMinh city.
A. aren’t lives
B. doesn’t live
C. don’t live
D. isn’t lives