[ Grammar ]
The Earth’s magnetic field, ______________ protection deflects charged particles from the sun, is crucial for life.
A. where
B. when
C. which
D. whose

Random Topics:
Past Simple VerbsPast, Present, FutureSentence Adverbs & Third ConditionalA/AnUnreal ConditionalsConditional Sentences and AdverbsVocabularyPresent Simple PassiveVerb Moods and Vague PronounsConditional Sentence Type 1Other quiz:
Present Simple Tense › ViewSimouy _____(tend) to study abroad one day.
A. tendes
B. tends
C. tend
Grammar speak,talk,say,tell › View
Ted is only five, but he can _______ the time.
A. say
B. speak
C. tell
D. talk
Vocabulary › ViewThe pool was so _________ I didn’t even get my hair wet.
A. shallow
B. searching
C. attractive
D. pattern
Grammar › View
Many British people let ………. fireworks on Guy Fawkes Night.
A. up
B. on
C. off
D. in
