He began tobecause every meanstried already.A、lose heart; has be

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问题 He began to________because every means________tried already.

选项 A、lose heart; has been
B、lose heart; had been
C、lose his heart; was
D、lose his heart; had

答案 B

解析句意：他开始失去信心，因为每一种方法都已经被尝试过了。tried发生在began之前，所以用过去完成时。lost heart意为“灰心，失去信心”；而lose one’s heart to意为“爱上某人”，故选B。

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He began to________because every means________tried already.A、lose heart; has be