Вставьте пропущенные слова:1) _______________ your head when you agree with what

Вставьте пропущенные слова:
1) _______________ your head when you agree with what somebody says?
are you nodding/are you nod/have you nodded/have you been nodding.
2) The director _______ to me before. I wonder if somebody complained about my work.
doesnt ever speak/isnt ever speaking/hasnt ever spoken/hasnt ever been speaking.
3) ________ a few minutes? I'd like to discuss something with you.
do you have/are you having/have you had/have you been having.
4)Smiling __________ break the ice when you meet someone new.
helps usually/usually helps/is usually helping/has usually helped.