(根据句意及首字母提示完成单词)My friend Sam o ____ to help me with my work last week．

(用适当的介词或副词填空)____ 1924 to 1929，Lao She taught Chinese in London．

(用适当的介词或副词填空)My sister asks me to look ____ her baby．

(用适当的介词或副词填空)It shows the audience life ____ 1898 and 1945．

(用适当的介词或副词填空)____ the end， we bought many books．

(用适当的介词或副词填空)The captain falls in love ____ Maria．

(用所给词的适当形式填空) We all lost ____ (us) in the play．

(用所给词的适当形式填空)There are some ____ (customer) in the supermarket every day．

(用所给词的适当形式填空) He left the room withoout ____ (say) goodbye．

(用所给词的适当形式填空)What was the population in that country at the end of the ____ (twenty) century?