Spanish language Q&A Forum

In the test question about Pideselas.. The aswers the computer listed were:

1. Order them for them

2. Order them for her

3. Order them for him.

I feel #2 and #3 answers are wrong. Would you please check of that.  I could be wrong myself.  Thank you.

Please explain 'al' in Mis amigos sintieron una gran alegría al verme.

Gracias,

Ricky

Is it interchangeable to say something like

Just as 'tal vez' and "quizás" are interchangeable, with no fast rules on them, is it the same for using quizá and quizás or is there some guide for when they can/can't be used?

also, is it impossible to use quizá/quizás/tal vez using future tenses? 
examples:

"Quizá iré a la biblioteca pasado mañana"
"Tal vez conocerás aquel varón cuando venga"
"Quizás recibiré una mejor evaluación cuando mejore mis debilidades en mi trabajo"