Раскройте скобки, употребляя глаголы в одном из след.времен: past simple? present simple, present continuous или past continuous 14. i (to see) my friend in the street yesterday, but he (to run) for a bus and he (not to have) time to speak to me. 15. what your son (to do)? - he (to study) computer science.
is doing, is studying