n. a chemical element, which is a gas that is the lightest of all the elements. It combines with oxygen to form water.
A. fragment
B. governor
C. hydrogen
D. helmet
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n. a machine for producing electricity;
A. generator
B. geometry
C. instruction
D. gratitude
n. things that are produced to be sold
A. genius
B. grain
C. goods
D. gauge
n. a large important organization that has a particular purpose, for example, a university or bank
A. illustration
B. foundation
C. instant
D. institution
n. an animal like a large rabbit with very strong back legs, that can run very fast
A. hare
B. hatch
C. gauge
D. hatred
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