[ Grammar ]
_______ you know Mars ?
A. Are
B. Is
C. Do
D. Does

Random Topics:
Personal & Possessive PronounsRun-On SentencesPast Tense vs Present Perfect TenseAuxiliary WordsWill & Be going toReported Speech and Reported QuestionsWh-QuestionActive Voice-Present tenseIf/Unless - Conditional type 1Conditional and Mix Conditional SentenceOther quiz:
Vocabulary › ViewWhich word would best describe a person who is always full of energy and enthusiasm?
A. indifferent
B. exuberant
C. obscure
D. perilous
Vocabulary › View
We need to develop our … before we get any bigger.
A. infrastructure
B. market
C. adaptation
Grammar › ViewThey swim every day. Look! They________.
A. a. swims
B. b. swam
C. c. is swimming
D. d. are swimming
Tenses and Articles › View
It took me _____ hour to finish the homework.
A. a
B. an
C. the
D. –