1.1) hasn't learned, 2) has done 3) have already watered 4) has just cleaned 5) has drawn
2.Polly has just performed her ballet dance. 2) Ron has prepared his costume yet. 3) the children have invited people to the concert yet. 4)Andry has just finished the poster.
I am fourteen или I'm fourteen
Красивый, красиво...
да и смотря в каком контексте..
1 for
2to
3to
4 for
5for
6 for
7to
8for
9 for
10 to for
11for
12 to
13to
14 for
15to
16to
17 for
b he went to the shops to buy some milk
I go to the gym twice a week to keep fit
he studied hard to get a better job
people don't have the money to pay these prices