It’s very friendly_ him to help me when I’m in trouble.[ ]

Lian Zhan with his visitors _____ from Taiwan _____ paying his first visit to the mainland of China. [ ]

I don’t have ________ to spend with her.

The farmers eat only 20 percent of fruits they grow, the rest of which _____ sold to the supermarket.

It was not until the entrance exams were in sight that that I had so many books to cover and so many exercises to finish.