I'm________totheclasscarefully,but

发布时间：2020-07-10 03:15:46

I'm ________ to the class carefully, but I can't ________.













A.listen; understand












B.listening; understand











C.hear; listen to











D.hearing; understand

网友回答

B解析listen to指听的动作、过程，而hear指听的结果，故选B．
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