单项选择题

People like to think that life was better in the past. The air was cleaner, the water was clearer, people 1 friendlier, life was safer and, certainly, it was 2 But were the good old days 3 so good Probably 3 Many of today"s problems existed(存在) in the past, 5 some problems in the past do not exist today. For example, many diseases(疾病) are 6 control now. It is safe to say that life has always had its problems. 7 existed in the past, they exist in the present and, certainly, they 8 exist in the future. But just remember: in the future, we can 9 at today"s life and talk 10 the good old days!

A.shall
B.will
C.would