When should I write to them?Do you think?(when)

When should I write to them?Do you think?(when) When do you think -------------- You should say ____ to others when you see them. what do you do when problems really come to you =face them i I think you should have asked when you were supposed to arri do write to me when you get there you certainly do not know ,I think you when he came to tear i always think about you when i do. when something is wrong ,all I have to do is think of you an i'll write to you when i_____to london. What do you think parents should do when children do somethi When do you think is necessary to tell a lie?