I was the only one that didn't attend the party (except)0
Everybody attended the party except me
Sit down please (seat)0
Please have a seat .
Please do have a seat .
she informed us about her trip too Paris in summer (that)0
she informed us that she went / had gone on a trip to Paris in summer .
Has he answered all the questions yet? (Have)0
Have all the questions been answered yet ?
In the event that he wins the game, he will perhaps celebrate the event (If)0
If he wins the game , he may celebrate the event
Bringing up good children isn't easy nowadays (It)0
It isn't easy to bring up good children nowadays