Spanish language Q&A Forum

I came across this question in the exercises.

Al profesor le gustaría que los niños ________ en voz alta

I selected the correct answer which was hablara.

However my first intuition was that the answer would be hable.

Hable wasn't one of the options however.

Would hable also be a potential correct answer for this question?

Thank you.

I don't understand what the following excerpt from the lesson is supposed to mean:

Can you please clarify what this means in prose rather than abreviated notation?

For example:  Nosotros nos reímos siempre con esa película.   We always laugh at that movie.  I would have never known to use "con."  I would have chosen "a."

And, Ustedes se ríen de los niños.  You laugh at the children.  Again, I would have chosen "a" instead of "de."  Why "con" in one sentence and "de" in another?

Will there be lessons on how to choose the correct preposition, or is it a matter of memorising the conjunction with the noun?

I did the assessment test, and began the lessons. At the end of the two lessons I tried, there were two questions at the end. Two questions is not enough practice for me. Am I missing something ? 

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¿Usas las botas?

No,no --- uso.