1.They have locked the door.
Have they locked the door?
I'm not sure, I was not there.
2.We should do it tonight.
Should we do it tonight?
Definitely, the deadline is tomorrow.
3.You can catch the bus.
Can you can the bus?
It depends which of the 4 buses you want to get on.
4.A package has arrived for Mr. Green.
Has a package arrived for Mr. Green?
If it is by Frederal Express, I think it has.
5.All visitors must register at the front desk.
Must all vistors register at the front desk?
Yes. But did you lock the back door?
6.Students are permitted to take four courses.
Are students permit to take four courses?
Isn't it all student must take four courses?
7.Your teacher gives too much homework.
Does your teacher give too much homework?
I am not sure, it is too much if I don't know how to do most of them.
8.The grandparents love their grandchildren.
Do grandparents love their grandchildren?
What kind of question is this?
9.The bathroom has a bathtub.
Does the bathroom have a bathtub?
Don't ask. Go see for yourself.
10.He cooked the rice too long.
Did he cook the rice too long?
Not really, he just left it keeping warm for too long.
11.It makes me very uncomfortable.
Does it make you very uncomfortable?
You should be ashame in asking this.
12.Marie runs two miles every day.
How far does Marie run every day?
Now, this is a real question.
13.She has some money.
Does she have any money?
What kind of answer do you think you will get?
14.Infants usually take two naps a day.
How many naps do infants take each day?
I don't think you will get one single answer.
15.He studied for the English quiz.
Did he study for the English quiz?
Of course, he's either an idiot or a genius to have answered otherwise.
16.Everyone had a great time at the party.
Did everyone have a great time at the party?
Everyone except me who cannot go because of this homework.
No promise these are correct questions/answers becasue I have not idea what YES/NO QUESTIONS are.