题目内容

Look at those young men. They ____ on the grass.
[     ]
A. sit
B. sat
C. sitting  
D. are sitting
D
练习册系列答案
相关题目
Look at the pictures and complete the words. 看图补全单词。

                                                     
      c_ _l                         n_ _se                   la_ g _                       d_c_or
                                               
     h_ _                           w_ _m                   m_ _th                      f_mi_ y