She stepped into the bedroom quietlyshe might wake up her roommates.A. for fear thatB. so

问题补充：

She stepped into the bedroom quietlyshe might wake up her roommates.

A. for fear that

B. so long as

C. on condition that

D. in order that

答案：

(答案→)A. for fear that

B. so long as

C. on condition that

D. in order that

解析：so long as 只要；on condition that…只要；in order that…为了；for fear that…唯恐，以防。