After two years’ research, we now have a _______ better understanding of the disease.
They _______ another song from Jay because he sang so well.
Rubbish _______ light after this kind of new machine is invented.
----what do you think of the Chinese language today?----Quite popular. It______ in communicating with other countries. More and more foreign friends are learning Chinese.
They _____ friends since they met in Shanghai.
It was in the small house was built with stones by his father he spent his childhood.