“Have you moved into the new flat? ” “Not yet. The rooms ________ (paint). ”
are being painted
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________(catch)intherain,hewaswettotheskin.
Iwonderifhecouldgetit________(do)beforetomorrow.
Somemoleculesarelargeenough________(see)undertheelectronicmicroscope.
heteachertoldthemsincelight________(travel)fasterthansound,lightning________(appear)togobeforethunder.
Hefellasleepimmediatelylastnight;hemust________(be)verytired.