问题
选择题
We must keep our room clean, for dirt and disease go______, you know.
A．hand in hand
B．step by step
C．from time ti time
D．one zfter another
答案
答案：A
句意：我们必须保持室内卫生，你知道脏乱与疾病是分不开的。hand in hand---happenning together and closely connected密切相关的，同时发生的。本句还可说成：Dirt goes hand in hand with disease.