My mom works as a teacher and she likes her students very much.- ________ great job it is! You know, being a teacher is my dream.

I’m quite sure that it is___ impossible for me to fulfill the task in only two days without anyone to help me[ ]

Mary’s mother got sick, so she called ______

The examination was coming, but she couldn’t go to sleep easily. Thoughts ________ in and images flashed into her mind. [ ]

I rang you at about ten, but there was no reply — Oh, that was probably _____ I was seeing the doctor[ ]