It is (necessary) that the (customs) (of all) nations (must be respected).

A:necessary B:customs C:of all D:must be respected

Without Customs approval, no unit or individual may pick up or forward goods（）

A:at Customs control B:in Customs control C:under Customs control D:for Customs control

Without Customs approval, no unit or individual may pick up or forward goods ______.

A:at Customs control B:in Customs control C:under Customs control D:for Customs control

Without Customs approval, no unit or individual may pick up or forward goods ______.

A:at Customs control B:in Customs control C:under Customs control D:for Customs control

Without Customs approval, no unit or individual may pick up or forward goods ______.

A:at Customs control B:in Customs control C:under Customs control D:for Customs control

Without Customs approval, no unit or individual may pick up or forward goods ______.

A:at Customs control B:in Customs control C:under Customs control D:for Customs control