The students ______ their homework every day.Now they _______ their homework.
| A．do, do |
| B．does, doing |
| C．doing, are doing |
| D．do, are doing |
The students ______ their homework every day.Now they _______ their homework.
| A．do, do |
| B．does, doing |
| C．doing, are doing |
| D．do, are doing |
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