某日傍晚，黄山的气温由中午的零上2℃下降了7℃，这天傍晚的气温是（ ）
﹣5℃
-The frequent terrible coal mine accidents killed more than 1,000 people in China last year.
-________.[ ]
A．Quite OK
B．Certainly
C．That’s the case
D．I agree
—What colour is your schoolbag?
— [ ]
A. It's pink
B. It's there
