—Sorry, do you mind if I smoke here? —Yes,
. The teachers hope the little ________ has been learned will be useful when they leave school.
. “This is a window, ________ the sun comes in.” said the lady to her baby.
. Living in the western part of the country has its problems, ________ obtaining fresh water is not the least.
. These students will graduate from the university next summer, ________ they will have studied here for four years.
. Many new means of transportation have been developed in our century, ________ perhaps the hovercraft.