1．Good ________ (营养) is essential if patients are to make a quick recovery.
答案：nutrition
2．I always ________ (弄混) you with your sister because you look so alike.
答案：confuse
3．They've ________ (减少，降低) the prices in the shop, so it's a good time to do some shopping.
答案：reduced
4．I ________ (遗憾) to tell you that the illness can lead to changes in personality.
答案：regret
5．The report ________ (强调) the importance of preschool education.
答案：underlined
6．Tree ________ (根) can cause damage to buildings.
答案：roots
7．We have the most fertile ________ (土壤) in Asia.
答案：soil
