The public transport system in Beijing is very good now, so there _____be any difficulty in traveling around the city.
It is generally believed that teaching is ________it is a science.
This dictionary is ________to my translation,but that one is________.
________the police thought he was the most likely one,since they hadno exact proof about it,they could not arrest him.
The little boy sat ________to his father and listened ________with great interest.
As the school term ends,New York is no closer to _______its shortage of teachers than it was earlier in the year.