uth-East Asia, many farmers cannot afford _____ farm equipment such as tractors, so most of the work is done with human labour.

I can’t open this door, Jack. Could you give me a hand—_________.

Going to the movies is good, ______ I really only like listening to music.

In his speech, Premier Wen Jiabao points out that creativity is __it takes to keep a nation highly competitive .

Though they met for the first time, they talked________they were good friends.[ ]