In some places women are expected to earn money ______ men work at home and raise their children.
| A．but |
| B．while |
| C．because |
| D．though |
______ we know, the air quality in the city has improved over the past two years.
| A．That | B．As | C．What | D．It |
We sometimes have to meet some difficulties, but we should develop a good attitude _______ life.
| A．in | B．on | C．at | D．to |
_______ never to come back, the boy left his home angrily.
| A．Determined | B．Determining | C．Being determined | D．Determine |
When my grandfather retired(退休) at the age of 60, he took a sea ________ around the world, which had been his dream since his childhood.
| A．travel | B．trip | C．voyage | D．journey |
The newly-built house, the walls _______ are painted light green, is really a peaceful place for us, especially after hard work.
| A．that | B．whose | C．of whom | D．of which |