Условие:
V. Раскройте скобки, употребляя требующуюся форму инфинитива:
1. He plans (to work) on his report for a month.
2. We came into the laboratory and saw them (to carry out) the test.
3. Everybody knows the research experiment (to do) by him already.
4. They are happy (to discuss) the problem all day long.
5. The student hoped (to pass) exam successfully.
6. (to speak) English regularly is useful.
7. This is the theme (to speak) of.
