Cong Fei was an excellent young man elped many poor children .

There inside he found a beautiful gold pocket watchRunning his fingers slowly ______ the fine cover, he opened it, wondering ______ what greater value it was[ ]

Cars do cause us some health problems——in fact farmore serious ______ than mobile phones do.

It was many years ____ American women were given the rights to vote.

Hearing the news about the crash of Air France Flight 447, he became very concerned _______ his daughter on board