摘要：2．A．hear B．to hear C．hearing
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Grandpa is getting old and he has trouble ______ what others say to him.
|
A．hear |
B．to hear |
C．hearing |
D．heard |
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Students should pay attentions to ________ the teachers in class.
|
A．hear |
B．listen to |
C．listening to |
D．hearing of |
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