[ Vocabulary ]
Pollution can have serious effects_________ the balance of ecosystem.
A. in
B. on
C. to
D. for
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PunctuationsPresent, Past and Future TenseGrammar - Compound SentencesRegular Plural NounsPresent Perfect Tense and Simple Past TenseThere is or There areCountable & Noncountable NounsModals for ObligationPassivisationPresent Simple Affirmative and NegativeOther quiz:
Vocabulary › Viewdwell
A. zephyr
B. futility
C. abide
Reporting Verbs › View
What about if we meet on Wednesday?
A. She suggested meeting on Wednesday.
B. She suggested to meet on Wednesday.
C. She suggested me to meet on Wednesday.
Verb Tenses › ViewWe took off our clothes and _____ into the river.
A. jump
B. jumped
C. had jumped
D. were jumping
The First Conditional Sentence › View
If you give my dog a bone he ____________ (burry) it at once.
A. burry
B. burries
C. will burry
D. burried