[ Vocabulary ]
High levels of pollution can upset the ____________ of an ecosystem.
A. average
B. substance
C. reason
D. balance
Random Topics:
Adjectives & PrepositionsGerund - to Infinitive Gerund & InfinitiveSimple Present and Present Continuous TensesPrepositions and ArticlesPresent SimpleTypes of Simple SentencesPast Tense, Recount Text, and Future TenseGerunds + To InfinitiveGrammar and Verb TensesOther quiz:
Nouns › ViewTrue or false? A proper noun must always be capitalized.
A. TRUE
B. FALSE
Future Tense › View
I can buy it for you if you want. I … in the afternoon anyway.
A. will shop
B. shop
C. will be shopping
Past and Future Tenses › ViewYesterday, they ________ a delicious cake.
A. Will bake
B. Bakes
C. Baked
Adverbs of Manner › View
Rewrite the sentences using one of the adverbs.
The children laughed at the funny clown ______.
A. secretly
B. happily
C. badly
D. quietly