Ask,as in the example.
1.The cat looks hungry. (you-feed-him)
Have you fed him?--Это пример.
2. Jane Looks ill.(She-catch-cold)
3.Tom is laughing.(he-hear-joke)
4.That dress is loose.(you-lose-weight)
6.Ted has got a nice suntan.(he-be-abroad)
7.Something smells nice.(you-bake-cake)
8.You look worried.(you-lose-something)

2. Jane Looks ill. Has she caught a cold? 3.Tom is laughing.Has he heard a joke? 4.That dress is loose. Have you lost weight? 6.Ted has got a nice suntan. Has he been abroad? 7.Something smells nice. Have you baked a cake? 8.You look worried.Have you lost something?