Lin Yi isn’t what it used to be．The last decade ______ greatchanges in the city images．

We arranged to meet at 8:00, but she never ______.

There is _____　a pen, an eraser and some pencils in her pencil-box.

ys followed the marks that they ________, untilfinally they found their way back to the campsite

you been to the Great Wall– Perhaps not in my memory. _______, it might havebeen during my early childhood.