[ Grammar ]
Your immune system works more __________ when you get enough rest.
A. calmly
B. effectively
C. calm
D. effective

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Tenses and Word FormationMix-TensesSimple PresentAdverbs and Time ExpressionsFigurative Language VocabularyTenses and Passive VoiceIF CLAUSEGrammar - Future ActionCountable & Noncountable NounsSentence and FragmentOther quiz:
Parts of Speech and Compound Sentences › ViewI saw that she’s tired, “so” I asked her to rest.
A. coordinating conjunction
B. correlative conjunction
C. subordinating conjunction
Grammar › View
If I study hard, I … my exam
A. passed
B. will pass
C. had passed
Phrasal Verbs › ViewA man was knocked ______ by a car and taken to hospital.
A. over
B. out
C. down
Modal Verbs › View
Identify the modal verb in the following sentence: “She could have been more careful with her words.”
A. could
B. have
C. been
D. careful