If you keep on working hard, I have no doubt ___ you’ll be successful in the future.
| A．whether | B．when | C．that | D．if |
相关试题
假如你叫王琳，别人问你Are you Wang Hong?你应 说（）
| A．Yes, I am. | B．No, I'm Wang Hong. |
| C．No, I am. | D．No, I'm Wang Lin |
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If you keep on working hard, I have no doubt ___ you’ll be successful in the future.
| A．whether | B．when | C．that | D．if |
假如你叫王琳，别人问你Are you Wang Hong?你应 说（）
| A．Yes, I am. | B．No, I'm Wang Hong. |
| C．No, I am. | D．No, I'm Wang Lin |
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