1,if the door open,nobody to try knocking at the back door.(boost)
2,do you think this watch value 50 dollars?(worth)
Two days later,my brother's going to Beijing,but he will come back soon.(a) or to
4 and water in the world but ordinary liquid,and also one of the most important liquid.(not),how -
Five,the little boy seldom go out at night to his parents,because he is very strict.(application),
6 and the bridge is badly damaged,who should be responsible for it?responsibility
7,because of the warm weather,sunny,rice growing well this year.(oversized)
8,my brother and I are so alike,people often think we are twins.(alike)
9 and he said he had seen you before the two sisters.(before)