Past Simple/Past Perfect
By that time, everybody ________ exhausted.
Either could be used here.
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Grammar Test - Indirect speech 
Grammar Test - Which conditional 
Grammar Test - will/going to 
Grammar Test - Countable/Uncountable 
Grammar Test - at/in 
Grammar Test - Phrasal Verbs - Find 
Grammar Test - too/enough 
Grammar Test - Phrasal Verbs - Bring 
Grammar Test - make/do 
Grammar Test - Silent Letters 
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