Babies are interested in they find and are likely to put it into their mouths.A. no matte

问题补充：

Babies are interested in they find and are likely to put it into their mouths.

A. no matter what

B. no matter which

C. whatever

D. whichever

答案：

A. no matter what

B. no matter which

(答案→)C. whatever

D. whichever

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