Work in groups.Ask and answer the questions.
3个回答

1.A：have you ever been to London?

B：yes,i have

C：has B ever been to London?

A：yes,he has.

2.A ：Have you ever tried skiing?

B：no,i haven't.

C：has B ever tried skiing?

A ：no,he hasn't.

3.A ：have you ever written an email in english?

B：yes,i have.

C：has B ever written an email in english?

A：yes,he has.

4.A：have you ever had an english pen friend?

B：no,i haven't.

C：Has B ever had an english pen friend?

A：no,he hasn't.

5.A：have you ever taken a plane?

B：no,i haven't.

C：has B ever taken a plane?

A：no,he hasn't.

6.A：have you been to another city by train?

B：yes,i have.

C：has B ever been to another city by train?

A：yes,he has.

就是练习的现在完成式,用肯定或否定句回答的练习,三个人对话,前两人直接对话,第三人用单三形式重复.

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