九、选择填空,将答案的字母编号写在括号里。(每小题1分,共10分)
( )1. ---- Let’s clean the windows.
---- ____________.
A. All right. B. Thank you.
( )2. Look! This ______ my storybook.
A. is B. are
( )1. ---- Let’s clean the windows.
---- ____________.
A. All right. B. Thank you.
( )2. Look! This ______ my storybook.
A. is B. are