[ Vocabulary ]
An ______________ is a procedure carried out to carefully observe, study or test something in order to learn more about it.
A. investigation
B. science
C. observation
D. evidence

Random Topics:
Comparative and SuperlativesPast PassiveConjunction: Because and SoPunctuating ClausesTypes of Simple SentencesSimple Past Tense and Present Continuous TenseWh- Questions Present Simple TenseLinking VerbsToo or EnoughGrammar & TensesOther quiz:
Auxiliary Verbs › ViewWhen ……… you last upload a selfie?
A. do
B. did
C. are
D. have
Grammar › View
I’d like to take horse back riding lessons, _____ my parents think it’s too expensive.
A. so
B. for
C. but
D. nor
Linking Verb › ViewShe tasted the green tea egg tart.
- action verb
- linking verb
Tenses › View
She ____ a deposit at this time next week.
A. will be making
B. makes
C. is making
D. made
