高中几道英语选择题!~》.在线等.

高中几道英语选择题!~》.在线等.
最好有根据.翻译.谢谢各位.
1._____he told us at the meeting inspired us.
A.if B.although C.when D.because
2._____by what he heard,the poor beggar was scared to death.
A.surprised B.surprise C.surprieing D.To surprise
3._____you wear in an international conference should be stylish and clean,and must definitely fit well.
A.what B.which C.how D.that
4.when I entered the playground,I found a lot of girls____volleyball excitedly.
A.play B. played C. playing D.plays