Each of the students，working hard at his or her lessons， to go to university.

Let’s go to the lecture on International Trade this evening. —That’ s great. I’ll _____ you at 6: 30.

The company the girl used to work ________ was shut down last month.

The team trekked _____ the jungle to look for the living tigers.

I wonder how much you charge for your services.— The first two are free the third costs $30