单项选择题
The mother didn't know who（）for the broken window.
A．blamed B．to blame C．be blamed D．would blame
单项选择题 I（）half an hour before she came out of the telephone box and I entered.
单项选择题 I'll lend you my computer（）you promise to take care of it.
单项选择题 I have not gone to see the doctor for a long time, but today（）
