单项选择题
The old buildings blend with the new ones in perfect（）so a walk along Nanking Road is an enjoyable discovery.
A.control B.order C.harmony D.action
单项选择题 Their products are frequently overpriced and（）in quality.
单项选择题 What he said was too（）for me to understand.
单项选择题 We've done our（）to make the process as simple as possible.
