1) Her illness was more serious than we at first thought. (serious) 2) Sorry I'm late. It took me longer to get here than I expected. (long) 3) My toothache is more painful than it was yesterday. (painful) 4) She looks about 20, but in fact she's much more than she looks. (old) 5) The problem is not so complicated. It's simplier than you think. (simple) 6) Health and happiness are more important than money. (important) 7) We always go camping when we go on holiday. It's much cheaper than staying in a hotel. (cheap)
)Does she know the song?(learn) - yes, she has learnt the text of the song recently
2)Is breakfast ready?(cook) - yes, my mum has already cooked it
3) Do you know how tasty the pie is?(eat) - yes, it's delicious. I've eaten it.
4) Is she at home?(come) - yes, Ann has just come.
5) Do you know the melody?(hear many times) - yes, I've heard it many times
6)Can you speak on the subject?(read about it) - yes, I've read lots of articles about it
7)Is Ann on holiday?(go to Italy) - yes, she's just gone to Italy
8)Are you ready with the report(write it) - yes, I've just written it.
9)Can you do this work?(finish it) - yes, I've finished it recently
объяснение:
Present Perfect: have/has +V3/ed,
где V = verb - глагол
если глагол неправильный, то смотрим 3 форму по таблице неправильных глаголов,
если глагол правильный, +ed
has употребляется в 3 л ед.ч. (she/he/it)
have - I + мн.ч
have = сокращ.форма 've
has = сокращ.форма 's