Вставить одно их. what time will you be home tonight? i am not sure. late a. may be b . might be c. can be 2. i can't find the theatre tickets. they out of my pocket a. must have fallen b. should have fallen c. had to fall 3. somebody ran in front of the car as i was driving. fortunately i. . just in time. a. could stop b. could have stopped. c. managed to stop 4. we've got plenty of time. we yet a. mustn't leave b. needn't leave c. don't need to leave