Open the brackets 1)Boris Petrov often (to go) on business to different countries. 2)You (to discuss) technical specification? -Yes? ____. We ( to discuss) them on Wednesday. 3)By the time you ( to come ) I already ( to clear up) all the points. 4)Dont call the customers representative until the President ( to come )

1) goes
2) discuss, discuss
3) come, clear up
4) comes