Though your children are you, they are not yours. (与…在一起)
每当国旗升起时,我们都很激动.
We all feel very excited when the is being raised.
聚会结束时我唱了一首歌.
I at the end of the party.
窗户旁边有一架钢琴.
There is a piano .
我想邀请他参加我们的俱乐部.
I want to join our club.
Though I can't watch my favorite program tonight,it's not a big deal.