下列各句中，加点的成语使用正确的一句是（ ）

Can you speak in a ____ voice We can hardly hearyou.

Since the war _________ in Syria in 2011, there have been a great many refugees(难民) running to nearby European countries.

____ the morning of December 1st, 2006, the 15th Asia Games ___ in Doha(多哈).

Would you like Emily and Carol—Of course. I hear they are twins and play the piano well.