Complete the sentences with the correct passive form of the verbs in brackets.

1 This painting (exhibit) in the National Gallery in London this month.
2 The galleries in my hometown (not/visit) by a lot of tourists in summer.
3 This portrait (paint) by my uncle last year.
4 His best photos (take) in India last spring.
5 These buildings (not/design) by Le Corbusier.
6 My new pencil case (not/make) of metal.
7 Mobile phones (improve) all the time by manufacturers.
8 The first electric guitar (not/design) in France.