Is this sentence correct- My grandmother asked us whether we wanted to stay at her house this weekend, and my sister and I couldn't because we both had a soccer game. We also had a party to go to on Saturday night, however.

This is the correct form of that sentence

Explanation:

My grandmother asked us if we wanted to be at her home this weekend, and my sister and I couldn't go because we both had a soccer game. However, we still have a party to go on Saturday night.

can you say more details

the correct answer is the following.

one of the groups i belong to is the boy scouts. this is a problem-solving group because it has tasks that we need to solve in order to other people in different activities such as the rescue of lost pets, or elder people in need.

the other group i belong to is kids pro environment, and is an information-sharing group that tries to create conscience about the risks and problems that generate pollution in our cities. we share information to other students and parents on the importance of keep our communities clean and our skies clear.