[ Grammar and Vocabulary ]
Smartphone can be a great learning _______ but you need to think of how to use it effectively.
A. benefit
B. choice
C. invention
D. tool

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Adverb of MannersGrammar - to be, possessive, have gotSentence LabelingActive-Passive VoicesPast ParticiplesGrammar - some / anyFuture Perfect TenseGrammar: Have toPassive VoiceGrammar - PunctuationOther quiz:
Grammar › ViewWhat type of phrase is it?
The carpenter hit the nail with a hammer.
_____
A. adverb
B. adjective
Grammar › View
Identify the word that has the opposite meaning with UP
A. down
B. little
C. ugly
D. over