So difficult ________ it to live in an English-speaking country that I determine to learn English well.
---Shall I keep an eye on your house when you are on holiday? ---________.
The new road is __________ of the old one.
Electronic devices such as iPods and headphones can do great harm to our hearing if _______ improperly.
A new __________to teaching English, is being used here, and it has proven to be very helpful to the students.
It was at the very beginning _______ Mr. Fox made the decision _____ we should send more fire-fighters there.