There (be)four students from School for the Blind in Nanjing sharing reading with the students in the US through online video on April 22,2016.
The Great Wall is too high. I have difficulty (climb) it alone.
The teachers welcome their students (polite) at the school gate every morning.
After doing sports for months, Tina is becoming (thin) than before.
Forty (year) development has changed Huai'an into a modern city.
To my surprise, my uncle got his driving licence in his (fifty).