[ Grammar ]
The athletes ___ in 68 different events.
a. participating
b. participated

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Conditional and Mix Conditional SentenceLexico and GrammarTransitional Phrases and ConjunctionsGRAMMAR - Could / Could notSynonym and AntonymIf ConditionalsPast ParticiplesGrammar : Structural Common ErrorsFrequency AdverbsPast Perfect Simple TenseOther quiz:
Countable Noun › ViewAfter the party there was a lot of _____.
A. Garbage
B. Garbages
Vocabulary › View
to be or become an increasing source of irritation or poisoning; irritate; make bitter
A. jubilant
B. festered
C. riffle
D. belligerent
Vocabulary › ViewIdentifying the age of layers of rock also fixes the age of fossils that are within those layers. What does fixes mean?
A. Causes
B. Hides
C. Establishes
D. Casts doubt on
Vocabulary and Grammar › View
Identify the correct sentence that uses the present perfect tense:
A. I am finishing my homework
B. I will finish my homework
C. I have finished my homework.
D. I finished my homework
