用括号中所给动词的正确形式填空。

I ________ the ring as I was digging the garden．(find)

用括号中所给动词的正确形式填空。

You ________ very busy when I ________ you last night．(seem, visit)

用括号中所给动词的正确形式填空。

When I ________, the class ________．(arrive, begin)

用括号中所给动词的正确形式填空。

I ________ him in the street yesterday．(see)

用括号中所给动词的正确形式填空。

She ________ the bike two years ago．(buy)

用括号中所给动词的正确形式填空。

He ________ here just now．(leave)

用括号中所给动词的正确形式填空。

He often ________ to help me at that time．(come)

用括号中所给动词的正确形式填空。

I was doing my homework when he ________ me．(call)

用括号中所给动词的正确形式填空。

He ________ in London when he was young．(live)

用括号中所给动词的正确形式填空。

－________(be)your mother a sales assistant last year?

－No, she ________．