--- Look! Mr Su is taking photos of his students.--- It ____ him. He has gone abroad for study.
It is winter now. The weather in Nanjing is becoming .
--- Why did you buy two pairs of shoes? --- It was so hard to choose which was________, so I took them both.
Dear students, please read every sentence carefully. ______ you are, ________ mistakes you’ll make.
I was so tired that I could ___ walk any farther.
The boy writes ________ .