Several novels by Mo Yan___________ into English so far.

单项选择题My teacher recommended that I__________as careful as possible when I took an exam.

单项选择题The old man, together with his neighbors,__________the performance when it began to rain.

单项选择题Who should be responsible__________the accident

单项选择题My aunts business has been doing poorly,but shes hoping that her__________will change.

单项选择题My secretary usually opens my post__________its marked private .