Помогите пожалуйста.Look carefully at each line. Some lines are correct, but

Помогите пожалуйста.
Look carefully at each line. Some lines are correct, but some have a word which should not be there. Cross out the unnecessary word and mark the line as wrong (). All the correct lines mark with a tick (+).
The task begins with two examples.

BARBIE
0. Barbie has been an important part of the toy fashion doll market
00. for nearly fifty years, and has been the subject of a numerous

1. controversies and lawsuits, often is involving parody of the doll and
2. her lifestyle. Barbie is a fashion doll manufactured by Mattel, Inc.
3. and launched in the March 1959. American businesswoman Ruth
4. Handler (1916 2002) often watched by her daughter Barbara at
5. play with paper dolls, and noticed that she has often enjoyed giving
6. them an adult roles. At the time, most childrens toy dolls were
7. representations of infants. Realizing that there could be a gap in the
8. market, Handler suggested him the idea of an adult-bodied doll to her
9. husband Elliot, a co-founder of the Mattel toy company. Ruth Handler
10. believed in that it was important for Barbie to have an adult appearance.