1.Use the appropriate form of the infinitive
1 . They want (to take) to the concert by their father.
2 . I am glad (to do) all the homework yesterday.
3 . This plant is known (to produce) tractors.
4 . He wants his son (to become) a lawyer.
5 . The enemy army was reported (to overthrow) the defense lines and (to advance) towards the suburbs of the city.
6 . He seems (to know) French very well: he is said (to spend) his youth in Paris.
7 . You had better (to call) our distributors at once.
8 . We are happy (to invite) to the party.
9 . That firm is reported (to conduct) negotiations for the purchase of sugar.
10 . It seemed (to snow) heavily since early morning: the ground was covered with a deep layer of snow.
11 . He didn’t hear me (to knock) at the door.
12 . I want (to inform) of her arrival.
13 . Our sportsmen are proud (to win) the cup.
14 . He is known (to work) on the problem for many years.
15 . The representative of the firm asked for the documents (to send) by air mail.

1 . They want (to be taken) to the concert by their father. 2 . I am glad (to have done) all the homework yesterday. 3 . This plant is known (to produce) tractors. 4 . He wants his son (to become) a lawyer. 5 . The enemy army was reported (to have overthrown) the defense lines and ( advanced) towards the suburbs of the city. 6 . He seems (to know) French very well: he is said (to have spent) his youth in Paris. 7 . You had better ( call) our distributors at once. 8 . We are happy (to have been invited) to the party. 9 . That firm is reported (to be conducting) negotiations for the purchase of sugar. 10 . It seemed (to have been snowing) heavily since early morning: the ground was covered with a deep layer of snow. 11 . He didn’t hear me ( knock) at the door. 12 . I want (to be informed) of her arrival. 13 . Our sportsmen are proud (to have won) the cup. 14 . He is known (to have been working) on the problem for many years. 15 . The representative of the firm asked for the documents (to be sent) by air mail.