Fill in the blank with a word in its correct form:This is the first month I _______ (work) so hard on improving my English pronunciation.
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When Lord is used as a surname, it originally means loaf-keeper.
A. 对
B. 错
According to the Greek Mythology, Demophon is Phyllis's intended.
A. 对
B. 错
The phrase on the edge of has the same meaning as the phrase on the verge of .
A. 对
B. 错