I have an appointment ________ Dr.Smith, but I need to change it.
We can't __________ to wait any longer or we'll miss the plane.
-If you do like the new house, why not buy it? -But it's really expensive. I can't __________ it.
__________ we gave him something to eat, he would save it up for his little sister.
Tim is in good shape physically __________ he doesn't get much exercise.
The engineers are so busy that they have zero time for outdoor sports activities,__________ they have the interest.