2. 职称英语
  3. —How long have you been ill? —______.A、Since last weekB、A week agoC、Once a w

—How long have you been ill? —______.A、Since last weekB、A week agoC、Once a w

游客2025-07-04  6
问题 —How long have you been ill?   —______.
选项 A、Since last week
B、A week ago
C、Once a week
答案 A
解析 问句用了现在完成时，回答要与之保持一致。此处是一省略句，用 since时间状语说明省略部分要用完成时；用a week ago说明动词须用过去时；用once a week说明动词要用一般现在时。
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