Many children, __parents are away workingin big cities, are taken good care of in the village.

Encouraged by my science teacher, I set about my studies on developing my product, _____I hope I will succeed in applying for a patent（专利）.

We’ll be free tomorrow，soI suggest ______ to the history museum

The work is not very profitable(盈利的) _______ cash(现金), but I am getting valuable experience from it

When will the railway station that connects the two cities open— next year. Only two thirds been built.