Sometimes I keep my feelings to myself it’s hard for someone else to understand.A. as soon

问题补充：

Sometimes I keep my feelings to myself it’s hard for someone else to understand.

A. as soon as

B. because

C. as long as

D. although

答案：

A. as soon as

(答案→)B. because

C. as long as

D. although

解析：句意：有时候,我什么都不愿意说,只因为别人很难理解自己。as soon as一……就……；because因为；as long as只要；although尽管。根据句意故选B。