A.
1/ It was Tom whom she bought the car from.
2/ It was my secretary who sent the bill to Mr. Handing yesterday.
3/ It was in Bristol where the film was made.
4/ It was Jane whom we're coming to stay with this weekend.
5/ It was in 1402 when Colombus sailed to America.
6/ It was the president who makes the important decisions.
II.
1/ The man whom I respect his opinion most is my father.
2/ He hasn't received any letter from her why makes him worried.
3/ I know the professor who wrote our textbook.
4/ The competition which a Canadian won was very interesting.
5/ Some buildings which were hit by bombs are still burning.
6/ The house whose doors are yellow is mine.
7/ The man whom I respect most is my father.
8/ He didn't receive the letter which I sent him last January.
9/ Tom made a number of suggestions most of which were very helpful.
10/ They have just found the couple and their car who were swept away during the heavy storm last week.
17/ He expected me to pay 2$ for 12 eggs three of which were broken.
19/ They talked about Marie Curie whose invention got the Nobel prize.