[ Present vs. Past Participle ]
I think your staff are … because they have been working hard all day.
- tired
- tiring

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Verb FormsAdverbs and Adverbial PhrasesConditional and Mix Conditional SentenceStative Verbs and TensesPresent Perfect and Present Perfect Progressive TensesInfinitive FormsClausesPreposition and ConjunctionAdverbial Clause of MannerPast TensesOther quiz:
Grammar › ViewThe lights were red but the car didn’t stop. The driver ….. the red light.
A. might not have see
B. might not have seen
C. might have not seen
Grammar › View
They walked slowly ______ the cave.
A. into
B. off
C. before