妈妈上楼来查看我们这些孩子时,我转过身假装睡着了。
A.When Mom came upstairs to check on us kids, I turned over and pretended to be asleep. B.When Mom came upstairs to check for us kids, I turned over and pretended to be asleep. C.When Mom came upstairs to check for us kids, I turned over and pretended to be sleep.正确答案A
