Although I admire you _____ your work on soil, I think you should apologize _____the villagers for the water pollution.
You can not imagine a child ________so cruelly.
—Ann is in hospital. —Oh, really? I know. I go and visit her.
Try your best to help the people when they are in trouble, _______you will feel pleased and happy.
_____ the right decision _____ the future is probably the most important thing we will ever do in our lives.
This is a very special flower and it can ________a strong sweet perfume at night.