问题描述：
几道英语填空题（填副词或介词）··帮帮忙
1.This course will be taught through the computers connected_____the Internet.
3.All the police officers were equipped_____guns to defend themselves against the criminals.
7.After he moved abroad,he kept writing letters to his parents to inform them_____his situation there.
1.This course will be taught through the computers connected_____the Internet.
3.All the police officers were equipped_____guns to defend themselves against the criminals.
7.After he moved abroad,he kept writing letters to his parents to inform them_____his situation there.
问题解答：
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