[ Vocabulary ]
a tiny living thing that causes diseases
A. infect
B. immune system
C. vaccine
D. virus
Select your answer:

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Modals of AdviceSimple, Complex, Compound SentenceVerbal PhrasesModals and Modal PerfectsPronouns and AntecedentsSubjunctiveParts of SpeechModals & ConditionalsHow often - long - much - manyInterjection & Prepositional PhrasesOther quiz:
Present Perfect Tense or Present Perfect Continuous Tense › ViewHe __________ five books so far in his career.
A. wrote
B. has written
C. has been writing
D. writes
Grammar › View
I looked everywhere, but I couldn’t find __________ to help me.
A. anything
B. anybody
C. whose
D. myself
