Spanish language Q&A Forum

De quién was an option for this question: 

Mi perro, ________ me acuerdo a menudo, ha muerto recientemente.

However when I selected it I was marked wrong.

However according to this page

Using preposition a and de + el que, la que, los que, las que = to/of/from/about which/who (relative pronouns)

Should I have been marked right because quién doesn't necessarily need to pair with a lo/la?

No es posible usar la palabra 'lo' en la frase : no lo entiendo?

Estoy confusado con el uso de gran fogata en vez de fogata grande, por su leccion, position of adjectives in Spanish, dice que gran/grande antes del pronombre significa Great, y despues Big/large. Es esto un Great bonfire, or a Large Bonfire? Puede corregir mi pregunta, gracias de antemano

In this sentence:  "Les lanzo la pelota y deben apagarla con las dos manos."  

I throw you the ball, and you must stop it with two hands.

I don't understand the use of 'Les" is it referring to 'you"?

the most attractive thing about him is his hair

lo menos atractivo de él es su pelo--my answer counted incorrect.  why?  the least attractive  thing about him is his hair.

every translator uses "lo" by itself and not "lo que".

de punta en blanco - wordreference is giving me a different definition. could this be reviewed? thank you!

I understand except for the last word "queráis    ".  I was expecting to see " queréis   " for the "you want" at the end.

Looking up queráis, I see that it is the present subjunctive and have read that it is used if there is a change in the subject.

I can't see a change in subject. The first part of the sentence has "you" as subject ans so does the second part.

I expect that I've missed something crucial here so please help me to understand.

Thanks.