нужно по смыслу понять какое это время и правильно открыть скобки
1 (leave/you)________the party now?
2 (love/she)________ him/
3 (have/you)_____and brothers or sisters?
4 Who( cook)________ dinner tonight?
5 (sent/he)__________ you an e-mail every day?

Are you leving party now?  Present continiuos
Do you love him? Present simple
Have you ( or have you got )  brothers or sisters? Present Simple
Who cooks dinner tonight а здесь допустимо и Present Simple, и Present Continiuos, англ язык, к сожалению, богат на такие двойственности Who is cooking dinner tonight?
Does he send you an e-mail every day? Проверьте свой текст, пожалуйста, если send, то так, как я указала выше. Если sent, то Did he send you an e-mail every day? На 4 предложении настаиваю на варианте Who is cooking dinner tonight?

Are you leaving the party now?  
Do you love him? 
Do you have brothers or sisters? 
Who is cooking dinner tonight?
Does he send you an e-mail every day?