2) are
3) is not
4) is
5) I'm not
6) We're not
Правило образования предложений в Present ContinuousУТВЕРДИТЕЛЬНОЕ ПРЕДЛОЖЕНИЕ
I/You, we, they/He, she, it + am/are/is + 
ОТРИЦАТЕЛЬНОЕ ПРЕДЛОЖЕНИЕ
I/You, we, they/He, she, it + am not (I'm not)/are (aren't)/is (isn't) +
ВОПРОСИТЕЛЬНОЕ ПРЕДЛОЖЕНИЕ
Am/Are/Is + I/You, we, they/He, she, it + ?
Вы можете использовать сокращения для глагола 'to be', но я бы порекомендовал это делать только с местоимениями.
II.1) I'm looking for
2) is buying
3) We are not (aren't) dancing
4) Is the waitress coming
5) is not wearing
6) Are you watching
7) am not working
8) are swimming
*Смотреть правило сверху
1)A:Have you ever seen an elehant?
B: Yes i saw some in a zoo last summer
A:Did you touch them?
B:No they was in their cages
2)A:Have you gone shopping on Saturday?
B:Yes I have bought lots of things
A:What did you buy?
B:A jacket,some shoes and a pair of trousers
3)A:Have you finished your project yet?
B:Yes ,i finished it last night
A:Have you typed it yet?
B:Yes I have already typed it.
4)A:Have you ever been in Poland?
B:Yes ,I went there in 1992
A:Where did you stay?
B:I stayed at a friend's house in Warsaw