Could you please help me choose the right word or tell me how to reword it?<br/><br/>1 The metro is packed until/to X station.<br/><br/>2 There are sweat stains at/on the armpit.<br/><br/>3 I am/become blond in the summer.<br/><br/>4 I smoked as long as you./I slept as many hours as yesterday.<br/><br/>5 The jeans are tight at/in the crotch.<br/><br/>6 She gave me a present to give to him/so I could give to him.<br/><br/>7 Use your crutches for/as support while you're ankle hurts.<br/><br/>8 The phone fell from/out of my hands.<br/><br/>9 Look how she talks about/of him.<br/><br/>10 This visit will make us/force us to get out of the house.<br/><br/>11 White shirts stain/get stained faster.<br/><br/>Thank you