—Does your son ________an hour________ his homework every day after school?
—No, shorter than that now, about half an hour.
| A．spend, do | B．spend, doing |
| C．spends, to do | D．spends, to do |
—Does your son ________an hour________ his homework every day after school?
—No, shorter than that now, about half an hour.
| A．spend, do | B．spend, doing |
| C．spends, to do | D．spends, to do |
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