新概念英语第二册第四课和第五课有一句 课文：he calls at every house in the street

新概念英语第二册第四课和第五课
有一句 课文：he calls at every house in the street once a month. 这里 in the street once a month可以颠倒成 once a month in the street 吗?
还有 书后的几个选择不甚明了 特求助
the writer has just moved to a new house. she was____ yesterday.
a at home b to the house c at home d in the home
这题我完全看不懂.
everybody knows him._____ know him.可以填写each吗?为什么?
he calls at every house in the street he _____everyone.
a calls b visits
为什么不选calls?
mr scott cann't get a telephone . telephones are hard to _____
a take b obtain
能选take 吗?