题文
He began to ______because every means ______ tried already.
| A．lose heart; has been |
| B．lose heart; had been |
| C．lose his heart; was |
| D．lose his heart; had |
推荐试卷
He began to ______because every means ______ tried already.
| A．lose heart; has been |
| B．lose heart; had been |
| C．lose his heart; was |
| D．lose his heart; had |
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