[ Grammar ]
My father says we must reduce waste ________ we always sort our rubbish before throwing it away.
A. because
B. so
C. but

Random Topics:
Present Tense vs Present ContinuousCoordinating ConjunctionAdjective / Noun + to InfinitivePerfect TenseEssential and Nonessential ClausesPreposition and AdjectivePersonificationPast Simple VS Used toVerb TensesPassive Voice of TensesOther quiz:
Prepositions › ViewTo go to London from your town, you need to get … the train.
A. In
B. At
C. On
Past Tense & Past Continuous Tense › View
My friend ………….me while I …………………the homework
A. was phoning / was doing
B. phoned / was doing
C. phoned / did
D. were phoning / were doing
Preposition of Time › ViewWe have class __________eleven o’clock.
A. on
B. by
C. at
a, an, the, Zero Article › View
Sarah went to —- theatre with some friends to see Shakespeare’s ‘Hamlet’.
A. —
B. A
C. An
D. The