(1) crafts are decorative or functional objects. (2) three popular crafts are embroidery, rug hooking, and bookbinding. (3) i enjoy all three. (4) however, my favorite is bookbinding. (5) the art of fastening together sheets of paper to create a book. (6) i learned bookbinding by watching my grandmother. (7) making books out of beautiful paper is her hobby. which is a sentence fragment? sentence (3) sentence (1) sentence (5) sentence (7)

the present continuous is a verb tense which is mainly used to indicates that an action is in progress at the moment of speaking.  

it is formed using: person + verb to be (am/is/are) +verb + - ing form  

example: i am studying at this moment .

in addition, the present continuous is also used in order to express things that will or will not happen in the near future.

example: i am having dinner with some friends tonight.

the speaker sometimes   uses it   to express that an action is repeated and it causes irritation on the part of the speaker

example: my sister is constantly complaining about everything.