Ⅰ.单词拼写
1．Local banks give better rates for converting our
traveller's checks into foreign ________(货币)．
2．The ship sank after a ________(碰撞) with an iceberg.
3．He asked me to ________(阐明)when we would start.
4．I am poor.So I often wear ________(破旧的)clothes.
