---Remember the first time we____ , Ed ? ---Of course, I do. You _____ a song on the stage.
Our teacher makes good use of any time______ he can spare.
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.