任务 1 / 10
伟大的混合 4 时态
只有问题！请注意操作符：Do/Does, Am/Is/Are, Did, Have/Has。
Where (they / live) usually? 只有问题！请注意操作符：Do/Does, Am/Is/Are, Did, Have/Has。
任务 2 / 10
How long (she / be) a doctor?
任务 3 / 10
When (you / meet) 你的好朋友?
任务 4 / 10
What (you / cook) right now? It smells great.
任务 5 / 10
(you / finish) the report yet?
任务 6 / 10
What time (the train / leave) every morning?
任务 7 / 10
(you / see) that amazing documentary yesterday?
任务 8 / 10
Who (they / talk) to over there?
任务 9 / 10
How many times (you / visit) 罗马 in your life?
任务 10 / 10
(it / snow) heavily in winter here?