Помогите пожалуйста. 1) I can't say I'm familiar ... the latest discoveries in this field. 2) I appreciate ... the help you have given me. 3) His poems are familiar ... many young people. 4) Many of us are familiar ... his poem...

Помогите пожалуйста. 1) I can't say I'm familiar ... the latest discoveries in this field. 2) I appreciate ... the help you have given me. 3) His poems are familiar ... many young people. 4) Many of us are familiar ... his poems. 5) I know I can solve ... this mystery myself. 6) He demonstrated his familiarity ... a lot of subjects. 7) Out ... the blue he began to speak. Варианты ответа: in, out, of, with, to.