Безотлагательно!Помогите,пжл!Use the correct tenses and passive forms of the verbs in

Срочно!Помогите,пжл!
Use the correct tenses and passive forms of the verbs in brackets.
Mermaids (see) have been seen by sailors for centuries. The basis of all mermaid myths
(suppose) is supposed to be a creature called a Manatee: a kind of walrus! Mermaids used (to
show) to be shown in funfairs until recently. It all began in 1817 when a "mermaid" (buy) was
bought for 6,000 by a sailor in the South Pacific. She (eventually sell) was eventually sold to
the great circus-owner Barnum. She (exhibit) was exhibited in 1842 as "The Feejee
Mermaid". It (say) is/was said that she earned Barnum 1,000 a week! The thousands who
saw this mermaid (must/disappoint) must have been disappointed. She (cleverly make)
was/had been cleverly made by a Japanese fisherman. A monkeys head (delicately sew)
was/had been delicately sewn to the tail of a large salmon. The job (so skilfully do) was/had
been so skilfully done that the join between the fish and the monkey was invisible. Real
imagination (must/require) must have been required to see this revolting creature as a
beautiful mermaid combing her golden hair