We finish our lessond at half past four(改成否定句）Jenny and Gina

We didn`t finish our lessond at half past four
Do Jenny and Gina like their school lunch?
再问： Do Jenny and Gina like their school lunch?还要作肯定回答 We finish our lessond at half past four这个是改为同义句
再答： Yes，they do. We finish our lessond at four thirty.