He _____ in Beijing now, but 5 years ago he _____ in New York.
A. lived; live
B. live; lived
C. lives; lived
D. lived; lives
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He first _____ his wife when theyboth _____ in Beijing.
A. meets; are
B. met; are
C. meets; were
D. met; were
When he was in the army, he _____ a uniform every day.
A. wears
B. wore
C. was wearing
D. worn
She normally _____ to work by bus, but yesterday she _____ a taxi.
A. goes; took
B. go; took
C. went; has taken
D. went; took
【单选题】慢性支气管炎最常见的并发症为()
A. 急性肺部感染
B. 呼吸衰竭
C. 阻塞性肺气肿
D. 自发性气胸
E. 肺源性心脏病