The earthquake which happened in Japan __ March,11th , 2011 was a big disaster(灾难).
He _______ eight hundred thousand dollars for his Benz(奔驰) car.
She told us that she _______ her handbag on the bus.
—_______? —My watch doesn’t work.
I won’t leave here until my mother _______ back.
We really don’t know _______. Could you help us?