Which one do you want to buy, anipod touch 4, an ipad 3 or an iphone 5 ?—______. They are too expensive.

Are you getting a new apartment thisyear—________ I can’t afford to pay my bills.How can I buy a new apartment

The computer is ______useful tool in _______world today.

The girl turned her head around to avoid her parents in the street.

Why not _________ your teacher for help when you can’t finish __________ it by yourself