Students can easily fall behind in their studies ____ they don’t manage their spare time carefully.
Listening to loud music at rock concerts ______ caused hearing loss in some teenagers.
It is very ______ that she will ring me tonight.
---Could you turn the TV down a little bit?---______. Is it disturbing you?
--I’m going to the States?--How long ________ you________ in the States?
Rather than _________ on a crowded bus, he always prefers _________ a bicycle.