water and human waste washed down sinks, showers, and toilets
A. emissions
B. smog
C. acid rain
D. sewage

Random Topics:
There is, There are, Some, AnyVerb AgreementGrammar speak,talk,say,tellQuantifiers / Prepositions of Time and Comparative AdjectivesVOCAB & GRAMMARVerb Tenses and ModalsVocabulary and Verb TensesPresent Continuos TenseNoun ClausesWish - beginnerOther quiz:
Grammar and Vocabulary › ViewWhich sentence has a past perfect tense?
A. Both of them have wanted to ride the elevator to the top.
B. His stepsister Emily had wanted to see the Air and Space Museum.
C. Darrell prefers walking if there is enough time.
D. He agreed to visit the museum with Emily.
Vocabulary › View
What does the word ‘elegant’ mean?
A. Being serious and eager in the way you do something
B. Being graceful and stylish in appearance
C. The overall state of a country’s or region’s money
D. A person’s sense of self-worth
Present Perfect and Simple Past Tense › ViewI ………… my house this morning, now i´m at my friend´s house.
A. left
B. leave
C. lieve
D. lefv
Grammar › View
Insert the correct form the of missing word.
I don’t know if _______ going to make it to lunch or not.
_
A. there
B. their
C. they’re
