Methane is a odourless gas and is the main ingredient of natural gas.
Correct answer B. a odourless
Tip: press A, B, C or D to answer, and N for the next question.
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See allThe boy was talking and girl was silent.
Correct answer C. and girl
Superstitions were very powerful during Middle Ages.
Correct answer D. Middle Ages
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Mr. Sheraz is doctor in Mayo Hospital.
Correct answer C. doctor
They met there an European.
Correct answer D. an European
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