The______ look on his face suggested that he had passed the exam.
.This washing machine is environmentally friendly because it uses _____ water and electricity than _____ models .
---- If you like I can do some shopping for you . ---- That’s a very kind _____ .
It is quite apparent that the aging population in China will cause _____ heavy pressure on ____ whole society in the future .
I ____ in London for many years , but I’ve never regretted my final decision to move back to China.
She is so ____ towards others that everyone gets on well with her.