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III. FILL IN THE CORRECT TENSE
1.I`m sure he _______(to agree) to show us how to use the Internet.
2.They _____(to open) the new computer library next week.
3.This time tomorrow I_____(to sit) my exams.
4.“I think I _____(to do) a design course at University,” Bill said.
5.The rock concert _____(to start) at 9.00.
6.I`m sure he _____(to buy) a new car by the time he graduates.
7.They _____(to be) married for thirty years this January.
8.I`ve bought some wood, I _____(to make) a new cupboard.
9.I can`t come with you this afternoon because I _____(to see) my aunt.
10. I _____(to sit) here for 20 minutes.
11. Tom _____(to work) since 10 o`clock.
12.Mary is tired because she _____(to work) in the garden.
13.How long they _____(to know) each other?
14.Sara looks upset. She _____(to cry).
15.I just _____(to finish) my work in the library.

1.I`m sure he (will agree) to show us how to use the Internet.2.They (are opening) the new computer library next week.3.This time tomorrow I (will be sitting) my exams.4.“I think I (will do) a design course at University,” Bill said.5.The rock concert (starts) at 9.00.6.I`m sure he (will have bought) a new car by the time he graduates.7.They (will have been) married for thirty years this January.8.I`ve bought some wood, I (am going to make) a new cupboard.9.I can`t come with you this afternoon because I (am seeing) my aunt.10. I (have been sitting) here for 20 minutes.11. Tom (has been working) since 10 o`clock.12.Mary is tired because she (has been working) in the garden.13.How long (have they known) each other?14.Sara looks upset. She (is going to cry).15.I (have just finished) my work in the library.