摘要： - Do you often visit your grandparents? - Mmm- , I’m afraid. I usually phone them. A. over again B. time and again C. once again D. now and again 31. D 提示:over again反复.time and again和over again 均为又一次之意.now and again时而.只有D与题意相符.
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― Do you often visit your grandparents?
― Mmm… ________ , I'm afraid. I usually phone them.
A. over again B. time and again C. once again D. now and again