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In order to win the first place in the contest，he practiced ________ the English song，but he found it difficult ________ the lyrics．

A．to sing；to remember                              B．to sing；remembering

C．singing；to remember                                D．singing；remembering

1、C

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In order to win the first place in the contest，he practiced ________ the English song，but he found it difficult ________ the lyrics．

A．to sing；to remember                              B．to sing；remembering

C．singing；to remember                                D．singing；remembering

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