Topics: TOEFL Adjective and Adverb
Mainly important for its chemical reactivity, chlorine can be used . . . water.
A. to sanitize
B. for sanitation
C. and sanitizing
D. sanitizes
Select your answer:

Random Topics:
Offer and SuggestionPast and Present ContinuousGerund or to InfinitiveAdverb PhrasesSecond ConditionalsAdverbs of Frequency & Simple Present TenseClauses and GerundsDependent ClausesAdverb of Frequency and TensesModal RequestsOther quiz:
Grammar › ViewAfter they _______________ video games, they finished their works
A. played
B. have played
C. having played
D. had played
Time Clauses of Future › View
Following in time or order is …
A. before
B. as soon as
C. after
D. when
