This is _______pen._______ pen is nice

I often think of the years ____ I worked with the foreigners, ____ has had a great effect on my later life.

May I smoke here?— No, you ______ . This is a no-smoking room.A．needn’t

Sarah had to call a taxi because the box was _______ for her to carry all the way home

“Run away from Beijing, Shanghai, and Guangzhou” has been a slogan for some of China’s younger generation______ are under unbearable economic pressure to survive in cities