问题
选择题
| In ________, he began to learn Russian, when he was in ________. A. 1970; the 50's B. the 1970; his 50s C. the 1970s; his fifties D. 1970s; his fifties |
答案
答案：C
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| In ________, he began to learn Russian, when he was in ________. A. 1970; the 50's B. the 1970; his 50s C. the 1970s; his fifties D. 1970s; his fifties |
答案：C