题文
Mario used to _____________ in the morning.
| A．practiceswimming | B．practicingswimming |
| C．practiceswim | D．practicesswimming |
Mario used to _____________ in the morning.
| A．practiceswimming | B．practicingswimming |
| C．practiceswim | D．practicesswimming |
试题篮
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