—When does our school often have a picnic?—_______,it's at the end of October.
These photos reminded him of the places _____he visited last year.
— Have you finished all your homework? — Of course. I ________ it before I went out to play football.
Great changes ______in our city. It is no longer ____ it used to be ten years ago.
My father _______ for London tomorrow, for there is______ an important meeting there.
-----Excuse me. Can you spare me a few minutes ? ------________?