[ 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

Random Topics:
DescriptionsVocabulary Spelling GrammarConditional ClauseVerb-ing and InfinitiveGerund and To InfinitiveGrammar, adverbs of frequency placementPresent, Past, and Future TimeFuture TensesComparatives - SuperlativePhrasesOther quiz:
Grammar › ViewWe often ……………. our relatives in Summer.
A. visit
B. visited
C. have visited
D. visits
Prepositions and Tenses › View
Correct the error: ‘She seen the movie last night.’
A. She seen the movie yesterday.
B. She was seeing the movie last night.
C. She saw the movie last night.
D. She has seen the movie last night.
Will/Going to › ViewWe need to plan our trip. I _______________ you tomorrow.
A. am going to call
B. are going to build
C. will drink
D. will be
Past Tense › View
kristina….. to an opera before she lived in Jakarta
A. was never going
B. has never gone
C. had never gone
D. did not go
