1)
(Doing) his homework, he was thinking hard.
2) (Having done) his homework, he
went for a walk.
3) (Selling) fruit, he looked back from time to time,
hoping to see his friends.
4) (Having sold) all the fruit, he went to see
his friends.
5) (Having eaten) all the potatoes, she drank a cup of tea.
6)
(Drinking) tea, she scalded her lips.
7) (Running) in the yard, I fell
and hurt my knee.
8) (Looking) through some magazines, I came across an
interesting article about UFOs.
9) (Having written) out and (learnt) all the
new words, he was able to translate the text easily.
10) (Having read) the
story she closed the book and put it on the table