Hello,<br/><br/>I have a few questions about this test.<br/><br/>This toothed whale has a large, square head with a.cavity containing<br/><br/> b.cavity to contain<br/><br/> c. the cavity for containing<br/><br/> d.a cavity that contains .......<br/><br/>I wonder why ''c'' is wrong? Is it because of 'the' article? <br/><br/>Is it possible to say : a cavity for containing? or a cavity containing, or a cavity to contain as well?