Your shoes are so old. Why don’t you buy a new pair一Because I ______ all my money on an MP5.

Security devices at airports are ______ to spot weapons that could be used by terrorists.

My friends have given me lots of_______．They’re very useful.

The famous actor is familiar ________ us, but it is a pity that he is not familiar ________ me no matter how deep I love him

At present, what _____ most heavily on American people is the terrorist accident(恐怖事件).