[ General Knowledge ]
What gas do we need to breathe to stay alive?
A. Nitrogen
B. Carbon Dioxide
C. Oxygen
D. Argon
E. Sulphur dioxide

Random Topics:
ConnectorsGerund NounModals of PredictionRelative PronounsModals of Necessity and SuggestionVerbs & Verb TensesWho am I?Conjunctive AdverbsPresent Simple TenseGrammar and PunctuationOther quiz:
Vocabulary › Viewwilted, faded away, dried up
A. kerosene
B. withered
C. combines
D. optimism
Grammar › View
Which sentence is grammatically correct? (Bongo is the name of my dog.)
A. Bongo my dog is a golden retriever.
B. Bongo, my dog is a golden retriever.
C. Bongo, my dog, is a golden retriever.
D. Bongo; my dog is a golden retriever.
Grammar › ViewThis homework is ______ than the previous one.
A. a harder
B. a little
C. a little harder
D. a harder little
Grammar › View
He is very tired______ he did not sleep last night.
A. since
B. although
C. because