单词变脸，根据其要求写出单词的正确形式。

用所给单词的正确形式填空。

Have you ever ________ (be) to another country?

用所给单词的正确形式填空。

We see Kate ________ (walk) down the street carrying a bag.

用所给单词的正确形式填空。

I spent a lot of time ________ (play) games with my friends this morning.

用所给单词的正确形式填空。

She said she ________ (go) to the park the next week.

用所给单词的正确形式填空。

You should ________ (give) me back my money.

用所给单词的正确形式填空。

I'm sorry ________ (hear) that.

用所给单词的正确形式填空。

Tony likes ________ (listen) to the radio.

用所给单词的正确形式填空。

Her father ________ (go) to Hong Kong last week.

用所给单词的正确形式填空。

How long have you been ________ (study) English?