Students should get a good habit of studying, you can’t do any other things while you’re doing homework. So please ___________ your MP4.
| A．turn on | B．turn up | C．turn off | D．turn down |
Students should get a good habit of studying, you can’t do any other things while you’re doing homework. So please ___________ your MP4.
| A．turn on | B．turn up | C．turn off | D．turn down |
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