第二节：语法填空（共10小题；每小题1.5分, 满分15分）If you walked past the supermarket, you would find many food

第二节：语法填空（共10小题；每小题1.5分, 满分15分）
If you walked past the supermarket, you would find many foods that have been treated 16 (kill) any harmful germs that might have been in them. Milk is a good example. Raw milk --- that is, milk just as it comes from the cow --- may be 17 (safe) to drink. But 18 the milk is heated and then cooled, the harmful germs are killed. The man 19 discovered this way of treating milk was a Frenchman by the name of Louis Pasteur.
In the supermarket you would also find many frozen foods --- frozen fruits, vegetables, meat and fish. As techniques for 20 (freeze) food are being improved, more frozen foods are appearing on the market, and more people are buying them. Fruits and vegetables to be sold in the supermarket are often frozen the moment 21 are picked. The 22 (soon) fruits and vegetables are frozen, the better. 23 , machines are often taken into the fields where 24 food grows, so that little time is lost 25 picking and freezing.16. to kill 17.unsafe 18. if / when 19.who 20. freezing

(答案→)16. to kill 17.unsafe 18. if / when 19.who 20. freezing 解析：可联系答.案.网客服索取。

这个答案应该是对的