Gary has planned to take a tour around the Great Lakes in the coming summer vacation and（） great pleasure from the visit.

The survival of civilization, as we know, is（）threat.A....

单项选择题The survival of civilization, as we know, is（）threat.

The wise man exercises（）in his behavior and enjoyments....

单项选择题The wise man exercises（）in his behavior and enjoyments.

The police will give you a ticket if you（）the speed lim...

单项选择题The police will give you a ticket if you（）the speed limit.