[ Vocabulary ]
Pollution can have serious effects_________ the balance of ecosystem.
A. in
B. on
C. to
D. for
Random Topics:
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:
Grammar › ViewIf I (know) how to swim, I (join) the water polo team.
A. knew / would join
B. had known / would have joined
C. know / will join
D. had known / will join
Conjunction › View
Both Asad and Arfa … to the stadium to support their favorite club
A. goes
B. has gone
C. is going
D. gone
E. go
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