[ Vocabulary ]
parts of your body that work together to fight disease
A. immune system
B. infect
C. protect
D. symptom

Random Topics:
Take or PutArticlePresent Perfect SimpleModals and VocabularySentence Fragments and Complete SentencesRelative ClauseFirst ConditionalsGerunds/InfinitivesIndependent and Dependent ClausesPersonal PronounOther quiz:
Preposition › ViewWhat time does your plane arrive ___ Madrid?
A. in
B. on
C. about
D. with
Grammar › View
Please add a ____ of salt to the soup.
A. cup
B. pinch
C. bundle
Present Tenses › ViewAdam ………… a book about wild animals now.
A. reads
B. is reading
C. read
D. are reading
Grammar › View
______ bought a new computer.
A. We
B. Us
C. Ourselves
