The idea of ______ might worsen the problem of global warming is different to the traditional idea that planting trees can slow down global warming.

A．Living in cities and living on farms.
B．Farm life in America.
C．How farmers’ life has changed.
D．Farmers and their farms.

A．He thinks it is a fantastic major.
B．He thinks it is very efficient in dealing with information.
C．He thinks it is too expensive to buy computer equipments.
D．He thinks it is very suitable for girls to study.