1) Which one can reflect the light? a) b) c) 2) Which one can block the light? a) b) c) 3) Which object lets the light to pass through it? a) b) c) 4) light travels in ......line a) b) c) 5) Allow light to pass a) b) c) 6) This door is .......... a) opaque b) transparent 7) The water is............. a) Transparent b) Opaque

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