那这些词什么时候当介词使,什么时候当副词使?
追答这个要看上下文,下面的句子你琢磨一下,
he is't in.(副词) He is in the classroom.(介词)
put your coat on.(副词) It is on Monday.(介词)
the town is five miles off. (副词)
take a book off the shelter.(介词)
my room is above. (副词)
The sun rose above the horrizon.(介词)
I have ten yuan over. (副词)
run over the grass.(介词)