More than half a million ______ are sent from Britain to Europe every year.

Children are always asking all kinds of questions because they are ______ about the world they live in.

Where are you going during the summer vacation?—I’ve found a nice beach ________ I can enjoy swimming.

It’s impolite ___ you to ask one’s private affairs

Who do you intend to have ____ your computer?— I haven’t decided yet. I wonder if you could help me.[ ]