用could,should,couldn't,shouldn't填空
A:Well ,look at your bedroom,Jenny.You ____ clean your room every day.You ____ leave all the things around.
B:I don't know I ____ keep them.I think you _____ help me put them away.But Mom,______ you please give a hand?
A:All right,but only this time.Well ,Jenny.What is that under the disk?
B:Oh,it's my sock.Sorry,Mom.But where ____ I put it?I ____ find the other one.