I wonder how he could __________ not handing in his maths exercises yesterday, for his maths teacher is always strict with his students.
Our factory has been developing rapidly these days. This year’s production is five times ______ it was ten years ago.
It was not until I was injured in a car accident ______ the real American society.
―The weather is changeable here. Please take more clothes. ― _________.
The old lady who caught a bad cold complained that the doctor was ______ too much for the treatment given to her.
The international agreement, __________to help people kick off the habit of smoking, was signed two years ago.