调音台接口盘的接口越全面、数量越多，录音技术制作也就越不灵活。
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The instructor watched the student ________ (take) the test.
I heard the dog ________ (bark), but it didn’t keep me awake.
She felt herself ________ (lift) up by the wind and ________ (throw) to the ground.
The missing boy was last seen ____ (play) near the river.
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