Choose the right preposition.

1.if i were you,i'd think twice before/through/on accepting their invitation.2.ben asked to excuse him on/while/for not being able to get in touch with me.3.lorna intended to help him on/while/through lending him some money.4.bob left for moscow without/for/through seeing his friend.5.i am sorry for/of/about having broken my promise.​

Yerkosyaorynbekova    1   07.09.2019 21:27    16