---- Putting on a happy face not only helps us make friends but also makes us feel better.---- _______.
Its great contributions ________ the development of a modern China will never be forgotten.
---Have you got any particular plans for the coming holiday? ---Yes. ________, I’m going to visit some homes for the old in the city.
There are plenty of jobs ________ in the western part of the country.
“If,” he added at the meeting, “________ enough time, we would certainly have done it better.”
________ I meet him, I always think of the things which happened between us.