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Laughter is one of the first expressions of emotions babies learn to convey.
Question 1:
Laughter is one of the first expressions of emotions babies learn to convey. At about what age do babies start to laugh?
A.
12 months
B.
7 months
C.
18 months
D.
4 months
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Trivial Practice Quiz science-technology - Test 11 | Englishfreetest.com
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15 questions
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