He fell asleep immediately last night; he must ________ (be) very tired.
have been
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Ifound________toanswerallthequestionswithinthetimegiven.
Thosewho’dliketovisittheexhibition________(sign)yournameshere.
heteachertoldthemsincelight________(travel)fasterthansound,lightning________(appear)togobeforethunder.
Themorewelookedatthepicture,________.
________(catch)intherain,hewaswettotheskin.
