请帮我细分一下这些单选题

请帮我细分一下几道单选题，最好每个选项都分析一下，谢谢大家
their houses are made _A_ stones
A.by B.of C.from D.up

we _B_ to hear the news
A.suprised B.are surprised C.are surprising D.surprise

we'll meet _C_ about 7:50
A./ B.at C.in D.on

they arrived in shanghai _D_ a summer evening
A.in B.at C.for D.on

Rice is _A_ in many places of China
A.grown B.produced C.made D.is produced

they went to beijing _C_ a bad time of year
A.in B.for C.at D.on

their houses are made _A_ stones
A.by B.of C.from D.up
这道选B吧？？
Aby，由谁造
Bbe made of是指能看出原材料的
Cbe made from 是指不能看出原材料的
比如：
This book is made of paper.书是由纸制成的。(能看出原材料）
Paper is made from wood .纸是由木头制成的。 (看不出原材料）
Dmake up
http://zhidao.baidu.com/question/22961411.html?si=3&wtp=wk

we _B_ to hear the news
A.suprised B.are surprised D.surprise
be surprised to词组。对。。感到很惊讶
C.are surprising，这个不是形容人的，比如The chicken is surprising，鸡很惊讶
记住ed是形容人的，ok？AD用法就不对
surprise sb.让某人感到吃惊

we'll meet _C_ about 7:50
A./ B.at C.in D.on
应该B？？
从大到小来看
in + 月份，季度，年份
on + 具体某一日
at + 具体钟点
for+时间段
如果是寒冷的早上，就是
On a cold morning,因为，寒冷的，说明是比较具体的一个早上

they arrived in shanghai _D_ a summer evening
A.in B.at C.for D.on
同上，对了