[ Grammar ]
What is the main purpose of our immune system?
A. To help us move
B. To help us breathe
C. To help protect us from bacteria and viruses
D. To help our hair grow

Random Topics:
Infinitives and GerundsConjunctions and PrepositionsModalsTimeSome & AnySynonyms and VocabularyComparison of Adjectives and AdverbsTOEICPast Perfect Simple TenseAdjectives, ING - EDOther quiz:
Verbs, Tenses, and Vocabulary › ViewWhich vocabulary word best fits in the sentence?
My computer screen leaves a ________ blue glow over the dark room.
A. Lattice
B. Luminous
C. Drift
D. Harmony
Infinitive and Gerund › View
Her car wants _____ up. It’s filthy.
A. wash
B. to wash
C. washing
Vocabulary › ViewEarthquake waves travel slowly through the hotter parts of the ______ and speed up in colder, denser areas.
A. kinetics
B. mantle
C. lipids
D. latitude
Grammar › View
You’ve … it in pencil.
A. wrote
B. writen
C. written
D. writed
