So he began walking ( ),trying to think out a plan to save them all A by and byB on and onC back and forth D up and down Though he is an ( )worker,he works very hardA ordinaryB commonC usual D general
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![So he began walking ( ),trying to think out a plan to save them all A by and byB on and onC back and forth D up and down Though he is an ( )worker,he works very hardA ordinaryB commonC usual D general](/uploads/image/z/2670258-66-8.jpg?t=So+he+began+walking+%28+%29%2Ctrying+to+think+out+a+plan+to+save+them+all+A+by+and+byB+on+and+onC+back+and+forth+D+up+and+down+Though+he+is+an+%28+%29worker%2Che+works+very+hardA+ordinaryB+commonC+usual+D+general)
So he began walking ( ),trying to think out a plan to save them all A by and byB on and onC back and forth D up and down Though he is an ( )worker,he works very hardA ordinaryB commonC usual D general
So he began walking ( ),trying to think out a plan to save them all
A by and by
B on and on
C back and forth
D up and down
Though he is an ( )worker,he works very hard
A ordinary
B common
C usual
D general
So he began walking ( ),trying to think out a plan to save them all A by and byB on and onC back and forth D up and down Though he is an ( )worker,he works very hardA ordinaryB commonC usual D general
1.C back and forth 来来回回回
2A ordinary worker 普通的,平凡的工人
1.他开始走来走去,想找到解决问题的方案.
尽管他是一名普通的工人,但他工作很努力.
c
back and forth
adv.来来往往地,来回地
a
C 意思是:来回走动
A 这几个词都有普通的意思,但A常用来形容人
C
A