[ Conjunctions and Preposition ]
The river water is severely polluted, mostly________ the dumping of raw sewage.
A. due to
B. lead to
C. because
D. so

Random Topics:
Grammar: AgreementPassive with ModalsMixed ConditionalGerunds, Infinitives and ParticiplesPrepositions Of PlaceNoun and PronounPresent Simple QuestionsCommas and Subordinating ConjunctionsConjunctions, Prepositions and InterjectionsIndefinite and Reflexive PronounsOther quiz:
If Conditionals › ViewWhat ____ if we ____ a terrible toothache?
A. we need/have
B. do we need/have
C. did we need/had
D. will we need/has
Modal Verbs › View
You _________ ring the bell because I have a key
A. mustn’t
B. needn’t
C. couldn’t
D. should
Grammar › ViewI wish I ___ taller.
A. am
B. were
C. is
D. will be
Grammar › View
Sofia _____ her hair everyday
A. washs
B. is washing
C. washes
D. washed
