perseverance

yo people, persevere for your common tests k, dun let the trauma of the previous papers get to you when you do the next few papers.

And yes, it shd be said that diamond _HAS_ a giant covalent structure. you can't say that it is a giant cov structure. cos it isnt. its simply a chemical element. which possesses said giant cov. structure get it?
*sigh* and its not right to say that I2 is a simple molecular lattice. It HAS a simple molecular STRUCTURE.

and i dun even wanna talk abt the abuse of because, therefores, hence, and thus.

In the past, exams used to have this phrase in the instructions: "Candidates are to note that marks will be awarded for proper/appropriate use of language in expression of answers."
which really is an euphemism for marks will be deducted for bad language. :)