John arrived late for the baseball game because he had to____ for his mom in the morning to the grocery store and the post office.
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After her husband lost his job as a taxi driver two years ago, the family _____on her small earnings from housekeeping jobs.
1927年,北伐军攻占武昌、汉阳和汉口,国民政府将三镇合为京兆区,定名“武汉”,作为中华民国临时首都。
A. 对
B. 错