Do you doubt______ he’ll leave all his money upon his death to his mother school?
The ________ soldier said it was ________ to give up his rest time to save more people caught in the earthquake.
What shall we use for power when all the oil in the world has ________?
Don’t ________ more work than you can do, or you will ________.
Experts have found that the disease will lead to a greater increase in the number of sufferers unless ________ seriously when the symptom first appears.
To improve their oral English, everyone in the class is supposed to ________ actively in these discussions.