Pronunciation of the English word doubtful.
# | Sentence | |
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1. | One thing remains doubtful. | |
2. | I'm doubtful about what I ought to do. | |
3. | It is doubtful whether Bill will come. | |
4. | Mrs. Harris is very doubtful about her son's future. | |
5. | The correctness of the information is doubtful. | |
6. | It is doubtful whether the rumor is true or not. | |
7. | It is doubtful whether this will work. | |
8. | It is doubtful whether this method will work. | |
9. | It is doubtful whether this machine works well or not. | |
10. | It's doubtful if we'll finish in time for Christmas. |