ll默片
春芽
共回答了25个问题采纳率:76% 举报
1.C.having fnished
这里是想强调在他“已经”完成工作后.,用完成时 had done
after是介词,后面是Ing 形式,after doing sth.
把这两种情况加在一起,就成了after having done sth.after having finished
2.C.informed
keep sb.informed of/ about sth.让某人了解,知道某事
keep sb.doing sth.让某人一直做某事
keep sb.from doing sth.让某人不做某事
1年前
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