Before selecting the curtain for your newly-decorated house，it’s important to know what colors look great _______ the wall paper．

It was a great day but we did not enjoy it_____ the beginning.[ ]

Foreign trade, the ____ of goods between nations, takes place for many reasons.

Mum, would you please buy me an MP5 player? — If you can help do some housework the whole vacation, you ____ have one as a reward.

I like watching football games ______ TV. [ ]