Are you asking for the translated sentence?
If so, I believe it would be "Melissa throws lies." Echa is a conjugated form of Echar which roughly translates to "to throw" and Mentiras <em />translates to "lies."
This may not be completely right, I'm sorry. www.spanishdict.com is a good place to find answers too.
What the other one said is correct
No. Esta nublado means it's cloudy. Another expression for it's raining would be esta lloviendo
Hope this helps!
The proper answer would be "va a estudiar", being it isthe only answr with the right conjugation.
Explanation located on this file