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LastSaturdayIwasbusymyhomeworkandmymotherwasbusythehousewok.A.in,doingB.do,withC.doing,withD.with,indoing这题我一直和姐争论这题,请各位帮个小忙,

题目详情
Last Saturday I was busy _____ my homework and my mother was busy _____ the housewok.
A.in,doing B.do,with C.doing,with D.with,in doing
这题我一直和姐争论这题,请各位帮个小忙,
▼优质解答
答案和解析
C
be busy doing
be busy with
都可以表示忙着做.