At that time we lived in houses which ___________ old, cold and unsafe.

Come and see me whenever ___________.

Ann moved ___ Hangzhou ___ September, 1992. [ ]

Alice, is this you dictionary?— Oh，no, it’s not _______. Ask Tom. He is looking for ____.

Dad, could I have an MP3 like this one ?—Sure, we can buy ________ one, but as good as this.