l was worried about ___it was safe A.what B.that C.if D.whether答案为什么是D而不是C?
问题描述:
l was worried about ___it was safe A.what B.that C.if D.whether
答案为什么是D而不是C?
答
l was worried about ___it was safe A.what B.that C.if D.whether
答案为什么是D而不是C?