单项选择题
A. could B. must C. would D. should
Nancy isn't here. It's my mistake. I forgot all about (...
单项选择题Nancy isn't here. It's my mistake. I forgot all about () her.
A. telephoning B. to telephone C. to telephone to D. the telephone to
() you are free, why not go skating with us A. Because ...
单项选择题() you are free, why not go skating with us
A. Because B. Since C. As D. For
