Choose the correct item.
1.The escalators in the shopping centre are____order/
A) out of B) off
2.Steve went to France____a business trip.
A) at B) on
3/Professor Reed specializes____Chemistry.
A) at B) in
4.It's typical____Susan to make rude comments.
A) of B) for
5.Would you please look____my pet while I'm away?
A) over B) after
6.Look____this essay and correct all the mistakes.
A) up B) through