Stone does not（）, and so the tools of long ago have remained when even the bones of the men who made them have disappeared without trace.

He had a（）look in his eyes. He must have been shocked.A...

单项选择题He had a（）look in his eyes. He must have been shocked.

While admitting that this forecast was（）exaggerated, th...

单项选择题While admitting that this forecast was（）exaggerated, the scientists warned against treating it as a cry of wolf.

In the advanced course students must take performance t...

单项选择题In the advanced course students must take performance tests at monthly（）