His mother died when he was five, his father never remarried, and by the time he was eight he （）in three different countries.
A. had lived
B. was lived
C. was living
D. will have lived
查看答案
可治虚冷便秘的药物是
A. 铅丹
B. 明矾
C. 轻粉
D. 硫黄
E. 雄黄
为减少不良反应的发生率，用糖皮质激素平喘时应采用
A. 口服治疗
B. 皮下注射治疗
C. 肌内注射治疗
D. 静脉注射治疗
E. 吸入治疗
in the______ half of the 17th century those cities became even more prosperous.
A. latter
B. latest
C. later
D. late
Mark often attempts to escape（）whenever he breaks traffic regulations.
A. having been fined
B. to have been fine
C. to be fined
D. being fined
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