There exists negligence in the use of land. _______, it may not be ruined.A.When giving proper careB.Unless giving proper careC.Given proper careD.Been given proper care-湖北继续教育网网校

[单选题]

There exists negligence in the use of land. _______, it may not be ruined.

A.When giving proper care
B.Unless giving proper care
C.Given proper care
D.Been given proper care