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<題組題>[題組:第38～43題]文章描述Cameron在國中一年級時觀看生產影片後，決定每年生日送禮物給媽媽的故事。
Cameron doesn’t. On his birthday, he gives his mom a gift. He ______ doing this in his first year of junior high school.
(A) starts
(B) started
(C) has started
(D) will start