The oral test counts 20 % _____ the final English exam.[ ]

He is giving ______ some presents.

The train arrived Nanjing 6:00 _____ the afternoon of September.13. [ ]

It’s time ______ class. Listen ______ the teacher. [ ]

To do some voluntary work for the 2nd Youth Olympic Games is ______ excellent chance for us to serve our hometown—Nanjing.