Factories must …….. the amount of rubbish that they throw into the rivers.
A. reduce
B. produce
C. dump
D. recycle

Random Topics:
Active and Passive voiceAdjectives Ed and IngPast PerfectConjunctions and PronounsRelative Pronouns with PrepositionsPast and Future TensesFuture PlansGrammar - Present Perfect with for and sinceGrammar - may & mightIndependent/Dependent Clauses & Relative ClausesOther quiz:
Grammar › ViewNobody could hear her_______ she spoke too quietly.
A. although
B. because
C. because of
D. in spite of
Tenses › View
Students at a number of schools ——————- from their classes in protest against the high-handedness of the administrative staff.
a) Stay away
b) Stayed away
c) Has stay away
d) Had stay away
The computer corporation ____________ malfunctioning products.
A. had their workers eliminate
B. had their workers to eliminate
C. had their workers eliminating
D. had their workers eliminated
Grammar › View
Regular exercise strengthens the heart, _________________ reducing the risk of heart attack.
A. notheless
B. thereby
C. notwithstanding
