There is a discount for the cost of the 6-week English course _____ you pay in advance.

Last Sunday I went shopping with my mother________ bought nothing.

e me, what can I do for you—Yes. I’d like to place ____ advertisementfor _____ used car in your paper.

Huge trees on the green land were cut down, ____ the city being buried by sand.

Visitors are not permitted ________ the park after dark, because of the lack of lighting.