.Fred sat in the front row __________ the speaker clearly.填什么 A.hearing B.to hear C.listening

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• 1.Tom sat in the front row ___ the speaker clearly A.hearing B.to hear C.the D./
• 1.Tom sat in the front row ___ the speaker clearly A.hearing B.to hear C.the D./
• .Fred sat in the front row __________ the speaker clearly.填什么 A.hearing B.to hear C.listening那个改一下啊、、、对不起打错了 .Fred sat in the front row __________ the speaker clearly.填什么 A.hearing B.to hear C.listening D listen to
• .Fred sat in the front row __________ the speaker clearly.填什么 A.hearing B.to hear C.listening
• R1=12欧,R2=6欧,闭合开关后,通过的R1电流为2A.求(1)R1两端电压,(2)通过R2的电
• he sat in the hall,【 】to the speaker attentively A listen B hear C listening D listened