A great number of small power stations ________ (set up) in their county since liberation.
have been set up
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Some molecules are large enough ________ (see) under the electronic microscope.
________(catch)intherain,hewaswettotheskin.
To succeed in a scientific research project ________.
I wonder if he could get it ________ (do) before tomorrow.
heteachertoldthemsincelight________(travel)fasterthansound,lightning________(appear)togobeforethunder.
