Though his teachers were quite satisfied with his performance, he thought he ____ better if he had tried harder.
He was so busy that he couldn’t help ____________ the experiment.
After he ________ the golf club, he has ________ a number of competitions.
My uncle’s house is much smaller than ours, but it is twice expensive.
He seems to Jane. He knows her well.
One of the most important questions they had to consider was of public health.