完成句子:(共5小题,10个空,每空1分,满分10分)
When the war ______ ______ (爆发), he was working in the navy.
I can’t ______ ______(想出)why she said that.
______ ______he is free will he come to see me.
______ ______ a good teacher, John made great progress in his English study last term.
If I have a choice I would ______ ______ choose something else.