We don’t have enough money .We,_______, can’t afford to buy the car.

Noise is unpleasant, ________ when you are trying to sleep.

 I’d like to start my own business next year – that’s _________ I will face my big challenge in life.

 With more and more farmers moving to cities, an inadequate labor force is    becoming a major factor affecting the country's grain output.

The most frightening words in English languages, as it is, are "Out computer is ______________."