That was the first time I _______ there and I was impressed by the friendly people very much
Full use should be _______the natural resources to combat the energy crisis.
Our classroom is very clean. Do you know who__cleaned it﹖
The great hall was crowded with many people, _____ many children _____on their parents’ laps.
________ of my sisters are experts in agriculture. Helping the farmers improve their farming techniques _________their duty.
________ the Chinese men’s football team with that of North Korea, we can see what the former lacks is spirit and determination.