单选题 _______untilrecently,peoplewhoarelefthandedhavebeenconsideredabnormal.
【正确答案】 A
【答案解析】句意：一直到现在为止，左撇子仍被视为不正常。up until一直到…为止。unless，down不与until搭配。not until直到…才，一般分开使用。如：Tom did not come until 3 o'clock．