--Life be very hard for people living in the north of Canada as it is very
cold there in winter.
—Yes, the weather there be as low as 60℃ below zero.
A. must;can
B. shall;must
C. will;should
D. hasto;can
网友回答
(答案→)A. must;can
B. shall;must
C. will;should
D. hasto;can
解析：可联系答.案.网客服索取。