Fill in each gap below with a suitable preposition to complete sentence.
Who looks (1)............................... your baby sister when your mother goes on business? – My father does.
In my family, lighting accounts (2).......................... 25 percent of the electricity bill every month.
Remember to turn (3)............................ the taps before you get out of the bathroom.
We are going to have a party (4)............................ Christmas Eve.
I always go to school (5)........................ foot.
Yesterday, I went (6)......................... my father’s car.
What are you doing (7).............................. present?
If we go (8)............................ wasting water, there will be a shortage of fresh water in a few decades.
I came (9)............................. my former teacher while doing shopping yesterday.
Jackson can help us (10).......................... the decoration for Tet holiday.