问题 选择题 看图，选择对应的句子。( ) 1. A. Walk forward.B. Walk backward.( ) 2. A. Turn around.B. Walk forward.( ) 3. A. Walk forward.B. Bend down low.( ) 4. A. Walk forward.B. Walk backward. 答案 1. B 2. A 3. B 4. A
