Jack is late again. It is _____ of him to keep otherswaiting.

The success of a government should be measured ______ the health and happiness of the people as wellas the development of economy.[ ]

It is important ______ students ______ carefully in class .

My brother doesn’t like skating. I don’t like it, ________.

(2013·河北普通高中高三质量监测)________ I couldn’t fully understand what he wanted to show in his paintings, I thought his works were quite impressive