1.is limited
2.does control, is controlled
3.had sent, have been held
4.gives
5.have appointed
6.left, had already shown
7.have been reserved, they are going to visit
8.as an explanation, they were invited
9.have been exhibited
B
1.is
2.have been attracting, had opened
3.have been beeing displayed
4.wants, it would take
5. was asked, how it gets, he answered
6.began, had purchased, have been beeing grown
7.have come