2.
a) How are you? We are fine.
b) Is Robert your brother?
c) I am fond of reading.
d) They are our friends.
e) What date is today?
3.
a) This book is mine.
b) Give me that pencil, please.
c) These students study in our group.
d) She likes her cat very much.
e) They always do their homework.
4.
a) is waiting
b) is washing
c) are reading
d) is going
e) are listening