, babies begin to talk between 12 and 15 months, but they can use body language to communicate before they begin to speak.
A.In common | B.In general |
C.In advance | D.In particular |
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, babies begin to talk between 12 and 15 months, but they can use body language to communicate before they begin to speak.
A.In common | B.In general |
C.In advance | D.In particular |