After the long journey, the three of them went back home,__________________.
The two girls are so alike that strangers find________difficult to tell one from the other.
The manager had fallen asleep where he_______,without undressing.
Give yourself 10% of________is left for your work and let me have the rest.
The school has developed an online system________ students can choose their own teachers.
We should do what we have to do________ we can do what we want to do in the future.