帮我分析一下下列英语选择题的语法，谢谢~

Question

1 Mary and Tom are going to move into a new house,so they have ordered some new____.
A pieces of furnitures B piece of furniture C furnitures D furniture
2 Don't be so noisy. Jimmy could not____ his lessons.
A concentrate on B focus C absorb D involve in
3 He fell off his bike yesterday,______. his leg was broken.
A first of all B in a way C above all D in other words
4 We are surprised at the_____ of waste air______greenhouse.
A effect , to B affect,to C effect,on D affect,on
5 Everyone should _____ on the modernization of our country.
A act as B play his part C take action D strive for
6 _____ of the workers has his own bench.
A each B every C other D all

Answer 1

1.D furniture是不可数名词，所以A、C排除了，至于B选项，piece应该为pieces才对。
2.A B中focus后也应该加一个on，C中absorb的用法应该为be absobed in，至于D的involve in,是参与，涉及的意思，与句意不符
3.D A是首先的意思，B的in a way是指在某种程度上，C为首先，毕竟的意思，D则是换言之，根据前半句，他从自行车上摔下来的意思，只有D最符合句意。
4.C 前一个空要填名词，affect是动词，所以排除；effect后面跟的介词固定是on,所以选C
5.C A和D后面的介词在句中是多余的，play one's part in,所以选B
6.A B和C用在句中不成立，剩下A和D，workers后面跟的是单数的has，所以选A

Answer 2

1.是some pieces of furniture,furniture 是不可数名词用piece修饰，并且又有some,所以复数加在piece上
2.是concentrate on ,固定用法
3.选D，意思是换言之
4.选C，effect on 是名词用法的对什么有影响，affect 是动词，the 后面要用名词
5.选C,play sb part in,take action on ，意思是发挥作用
6.选A,意思是每个工人，each of 固定搭配