Is Alan late?
 I don't know   IF /WHETHER ALAN IS LATE OR NOT

 

Why is he late?   
  I wonder WHY HE IS LATE.

 

 Does he enjoy sailing?
She wants to know IF /WHETHER HE ENJOYS SAILING (OR NOT). 

 

Where does he sail? 
I have no idea WHERE HE SAILS.

 

 Did she join the race?
Do you know WHETHER OR NOT SHE JOINED THE RACE? 

 

When did she join the race? 
I don't know WHEN SHE JOINED THE RACE

 

 Have they done the hw?
They  worry IF /WHETHER THEY HAVE DONE THE HW.

 

Which hw haven’t they done?
WHICH HW THEY HAVEN’T DONE doesn't concern me

 

 

  

DO YOU SEE THE GIRL? WHERE IS SHE STANDING?

    

 

 --------------------------

 

1.She claims ______________

2.Nobody cares_____________

3. We have admitted__________

4. They consider_____________

5. It is obvious______________

6._________________________is not known.  (WHEN)
7.____________________________
depends on the weather.(WHETHER) 8.__________________________ can be decided after dinner. (WHERE)

2.
https://www.bbc.co.uk/sounds/play/p08zgw82