Answer Keys-Sr.2-Jun.6

[1] found/discovered/came up with/thought of     <= ~ ideas                      

  もみ殻/籾/籾糠                                                 

  (bad) air pollution

[2] First/Firstly/To begin with   <= Present the first action with (,)          

  Then/Second/Secondly/So   <= Present the next action with (,)

  Every day/Day by day/Then  <= A bt too difficult, sorry!

  After       <= ~ many days, 

  named/called                        <= Introduced a name 

  still expensive/costly and weak/fragile  <=> cheap and strong 

[3] showed/presented/proposed/explained/introduced   <= at an international contest            

  cheaper   <= poor people can buy it and build houses because    than

  get/earn/make money        <= by sellijng rice waste                

  air pollution   <= one of the reasons she started the project

[4] get over/solve/resolve/work out       <= ~ the problem                    

  try/attempt/aim        <= have a great power in us, but  

  never/don’t/won’t (rarely)    <= Chances ~   come to us if we just wait

[5] important/essential/valuable/useful/helpful
 thinking/ideas/perspectives/approaches/solutions      <= different ways of ~ 
 making/creating/using/taking/getting       <= ~ the chances
 c->d->b->a   <= She named it ... However, ... She had to ... She asked two friends ...
 c, e