Lack food supplies and wanted by the police, theterrorists made a ______ attempt to hijack(劫持) a plane toIran.

Usually, we don’t know how important something is we lose it.

Deng Yaping is a famous ping-pong player.

I wonder if you are for or the plan．

Frank often wears a mask _____ he can keep fit in the foggy and hazy (霾) weather.