---Isn’t it time you went to bed, Mike?
---I _____ painting all afternoon, so I have to finish my homework now.
| A．have been practicing | B．have practiced |
| C．was practicing | D．had practiced |
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---Isn’t it time you went to bed, Mike?
---I _____ painting all afternoon, so I have to finish my homework now.
| A．have been practicing | B．have practiced |
| C．was practicing | D．had practiced |
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