that's the salon where linda dyed her hair (had)

=> linda ...... at the salon

many people say that he is a dangerous criminal (said)

=> he ...... dangerous criminal

it is said that Dr Smith is creating a new flu vaccine (be)

=> Dr Smith ...... a new flu vaccine

there is only a little coffee left in the pot (much)

=> there ............. in the pot

works of art can be seen in a museum (where)

=> a museum is ........ be seen

nobody apart from sandra believed that he woul succeed (only)

=> sandra .......believed that he woul succeed