任务 1 / 10
PRESENT PERFECT vs PAST SIMPLE
经历 (ever/never) 对比特定日期的事件。
(you / ever / eat) frogs? 经历 (ever/never) 对比特定日期的事件。
任务 2 / 10
I (eat) frogs in Paris last year.
任务 3 / 10
She (never / fly) by plane.
任务 4 / 10
He (fly) to London two days ago.
任务 5 / 10
I (be) to 西班牙 three times.
任务 6 / 10
We (go) to Spain in 2019.
任务 7 / 10
(you / ever / ride) 一匹马?
任务 8 / 10
I (ride) 一匹马 when I was a child.
任务 9 / 10
They (never / visit) the USA.
任务 10 / 10
They (visit) the USA last summer.