Se puede nadar en este lago.
It is an impersonal sentence because it has no subject. This case is used "<u>se</u>", it is when we want to talk about the subject.
<h3><em><u>MissSpanish</u></em></h3>
The answer is
La revista Cosas es mi favorita. ___La compro_________ todos los meses.
The female and singular pronoun <u>La </u>is replacing the magazine (revista Cosas) which in Spanish is also female.
the other options do not apply because:
<u>Lo</u> compro is male gender
<u>Las</u> and <u>los</u> are for plural and the sentence states only one magazine.
La nueva película sale el viernes. Dicen que va a ser la mejor película del año.(Yo quiero) ir al cine el fin de semana,
