请教4个问题

　　1 Helen arrived _______London airport______ the morning of June 7.

　　A) in; on B) at; on C) at; at D) at in

　　2He ________ last year.

　　A) give up smoking B) give up smoke C) gave up smoking D) give up smoking

　　3 My uncle speaks English French Russian and Japanese. He is believed to have a gift _____ language.

　　A) about B) for C) with D) in

　　4_____ day Bill was starting his motor-bike when his sister Mary came out and asked for a lift.

　　A) Some B) The other C) Another D) On one