你今天所做的决定通常会影响你的将来．
The choice today will usually affect your future．
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）．