[ Grammar Clauses ]
Factories allow these dangerous substances to pour into the rivers, ___ their chimneys fill the atmosphere with poisonous fumes.
A. while
B. where
C. although
D. so that

Random Topics:
Transitive or Intransitive VerbsPresent, Past and Future TenseSubject Verb Agreement Irregular VerbGrammar and IdiomsModals and PhrasesConjunctions - ConnectorsNoun QuantifiersModal AuxiliariesVocabulary and DefinitionsTypes of Sentence StructuresOther quiz:
Grammar › View_____ elephant and _____ mouse
A. An ; an
B. A ; a
C. An ; a
D. A ; the
Grammar › View
I always use my fast motorbike if i want to go to school.
A. adverb
B. pronoun
C. adjective
What are you talking _______ ?
A. about
B. on
C. with
D. to
Grammar › View
Sinta and Jojo _____ many songs
A. Sing
B. Sings
C. Singing
D. Sang
