-Another cup of coffee?That's your third since lunch.
-Yeah,well,I ( ) all night preparing for my history exam .I can hardly keep my eyes open.
A stayed up
B have stayed up
C have been staying up
D will stay up
我选择C!
他想要下一杯咖啡说明他已经开始并且正在熬夜,所以选C是对的!
-Another cup of coffee?That's your third since lunch.
-Yeah,well,I ( ) all night preparing for my history exam .I can hardly keep my eyes open.
A stayed up
B have stayed up
C have been staying up
D will stay up
我选择C!
他想要下一杯咖啡说明他已经开始并且正在熬夜,所以选C是对的!