[ Vocabulary ]
A ________ is any condition in an experiment that can be changed.
A. control
B. experiment
C. scientific method
D. variable
Select your answer:

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Simple Present VS Present ContinuousInfinitives or GerundsModal and Modal PerfectAsking for and Giving OpinionAdverb Identification, Function, and Formationused to vs be used to vs get used toTenses and VocabularyPassivisationNoun Clauses with THATPossessive NounsOther quiz:
Adverbs › ViewDifferentiate between the adverb and adjective in the sentence: ‘The tall man walked slowly.’
A. Adjective: ‘man’; Adverb: ‘walked’
B. Adjective: ‘slowly’; Adverb: ‘tall’
C. Adjective: ‘the’; Adverb: ‘tall’
D. Adjective: ‘tall’; Adverb: ‘slowly’
Relative Clauses › View
The people who are waiting for the bus in the rain are getting wet.
A. waiting
B. to wait
C. waited
D. wait
