158. --- Sorry, I don’t know how to work out this maths problem. --- Use your _____, and then you will find a way.
Do you still remember the chicken farm _____ we visited the other day?
It is diving _____ great speed that often causes serious accidents.
______ is necessary for everyone to obey the traffic rules.
___ H1N1 flu from spreading, our government has taken some effective measures.
What does ATM _____? Automatic Teller Machine?