23.Today,we take washing machines for granted,but there was before 1869.
London,______ last year, is a nice old city.
Because of my grandma’s poor memory, she has forgotten all____ you told her.
The weather turned out to be very good,_____was more than we could expect.
The river______ are covered with trees is polluted.
My daughter told me that_____ of her homework had been finished.