问题补充:
单选题Hecan’thelp__housework,forheisbusy__fortheexamination.A.doing; preparingB.to do; to prepareC.doing; to prepareD.to do; preparing
答案:
D
时间:2019-02-26 10:59:41
单选题Hecan’thelp__housework,forheisbusy__fortheexamination.A.doing; preparingB.to do; to prepareC.doing; to prepareD.to do; preparing
D