complete the questions.1.He hasn't locked the door,....?2.They have joined us,...?3.she hasn't finished reading,....?4.we have started Text 5,...?5.the children have helped their parents,..?6.she hasn't danced a lot,...?7.they haven't laughed,...?choose the verb and put in;finish,wash,lock,clean,help.1.she has....reading.2.they have ....their parents . 3.he has ....the floors.4.we haven't ....the door .5.You haven't ..your teeth.