第四课时Section B(2a2c,Unit 3Is this your pencil,一、用括号内所给单词的适当形式填空。(53分15分)1We must _ (help) Paul and Alan.2_ (ask) Cindy for the book.3Are these keys _ (you)?No，they arent.4Please email _(I) at .5The girl _ (lose) her bag,help,Ask,yours,me,lost,二、用方框中所给单词的适当形式填空。(54分20分)6Here are _ photos of my parents.7Is this your black _？No，it is his.8I _ find my green pencil.9Please _ me at .10Bob and Gina are in the school _,some,bag,must,em
