Goals have to be realistic students can reach them and feel a sense of achievement.A. so

问题补充：

Goals have to be realistic students can reach them and feel a sense of achievement.

A. so long as

B. so that

C. now that

D. even though

答案：

A. so long as

B. so that

C. now that

D. even though

解析：B

解析空格后的句子是空格前句子的目的，所以用so that。句意为：目标应该现实一点，这样学生们就能实现它，并有成就感。