It was a nice meal, __________ a little expensive.

__ __ many Chinese women have received higher education, there are still obstacles that prevent them from enjoying the same opportunities for education and employment as men．          

The professor, _____ some of his assistants, _____ to attend our discussion this afternoon.

My brother has his own business — that’s also ______ I expect to do after I graduate from Harvard University.

 The sun is bigger than the moon, _______ we all know it.