Unit 3 Is this your pencil?同步练习 3一、默写。1.一支钢笔__________2.一个文具盒________3.蛋糕______________4.午餐饭盒__________5.这里______________二、看图将下列单词补充完整。 1.r_ _er 2.pen_i_ c_ _e 3.c_a_on 4.s_h_ol_a_ 5.r_b_er三、单项选择 。( ) 1. ----______ isn’t my pencil. A. This B.Is C. / ( )...