re were no automatic washing machines,people would have to wash their clothes ______ hand or ______ hand-operatedmachines.

Peter survived in the accident when he fell overboard yesterday He _______ escaped drowning

We can have a day out tomorrow. Why don’t we go fishing— ________

The teacher finally ________ his project to the school board for approval.[ ]

下列各句中，划线的成语使用恰当的一项是（ ）