English
Senior High
この英文ってどういう仕組みなんでしょう？
文法とかってことです。
英検２級です。わかんないので教えてください!!!
(3) The scientist made great (
) in developing a new solar energy
system thanks to support from a few energy companies.
O1
ob
1 knowledge 2 progress
3 potential
4 capability
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