从装有2只红球，2只白球和1只黑球的袋中逐一取球，已知每只球被抽取的可能性相同．

（1）若抽取后又放回，抽3次，分别求恰2次为红球的概率及抽全三种颜 * * 的概率；

（2）若抽取后不放回，抽完红球所需次数为ξ，求ξ的分布列及期望．

根据句意，用括号中所给词的适当形式或者时态填空。（每空2分，共20分）

小题1:─What does your brother do?  ─He is a______ (music).

小题2:Jim enjoys ______ (take) a walk with his friends.

小题3:It’s cold outside. ______ (not open) the door, please.

小题4:Jim would like______ (eat) some noodles.

小题5:What ______ (be) the date last Sunday?

小题6:My father often _____ (buy) food and drink from that shop.

小题7:─How’s the weather today?  ─It’s _____ (wind).

小题8:My mother and I want to______ (make) a snowman.

小题9:There are some ______ (leaf)on the tree.

小题10:The boys are really very _____ (relax) on the beach..