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

My uncle’s house in the downtown area is much smaller than ours , but it is twice _______ expensive .

.-----How do you find the dictionary? -------It’s useful,_________for beginners of English.

After the heavy snow, many students helped to clear away the snow ______ in our school.

The death toll of the quake in New Zealand is _____ 150, but officials say the figure won’t stand because they are still getting information in．