摘要： You don’t have to take notes I tell you to do so. A. if B. when C. because D. unless
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You don’t have to take notes ________ I tell you to do so.
A. if B. when C. because D. unless
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You don’t have to take notes ________ I tell you to do so.
| A．if | B．when | C．because | D．unless |