Verified answer

I tried to speak Spanish, and my friend tried to speak English.

Alejandro played football, so Maria went shopping.

When he handed in his homework, he forgot to give the teacher the last page.

The teacher returned the homework after she noticed the error.

After they finished studying, Juan and Maria went to the movies.

Juan and Maria went to the movies after they finished studying.

:o)

The answers given about are compound sentences not complex sentences

Complex sentences are indeed 2 sentences joined together, but they need a subordinate clause - that is, part of the sentence needs to not make sense without the rest of the sentence.

E.g. Max is studying for an exam.

MAx is studying = a simple sentence

for an exam = subordinate clause

:)

After the sun set, I made dinner.

We visited the bakery before it closed.

2 sentences joined by a coma or semicolon or conjunction.

i ran and i walked.

Please give me the 10 points for best answer!!