关于Itsdifficultforustol的百科

• It'sdifficultforustolearnalessoninlife

• 问题详情：It'sdifficultforustolearnalessoninlife_______we'veactuallyhadthatlesson．（）A．after      B．since    C．until      D．when【回答】C知识点：复合句题型：选择题...
• 2020-12-315137