根据句意及提示，写出句中所缺的单词。

Dr Bethune was busy performing an ________(手术)on the dying man．

根据句意及提示，写出句中所缺的单词。

He lives a simple life．He likes ________(储蓄)money．

根据句意及提示，写出句中所缺的单词。

My uncle is an _______(精力充沛的)businessman．He always works till midnight．

根据句意及提示，写出句中所缺的单词。

－Your white blouse ________(与……相配)your black trousers very well．

－Thank you．

根据句意及提示，写出句中所缺的单词。

Do you play an ________(积极的)part in the class activities．

按要求完成句子。

Her sister is more careful than Ann．(同义句)

Ann is not ________　________　________ her sister．

按要求完成句子。

We stayed at home because it rained heavily．(同义句)

We stayed at home ________．

按要求完成句子。

This picture is more beautiful than those two pictures．(同义句)

This picture is ________　________　________ of the three pictures．

按要求完成句子。

Walk the dog at 7 a. m.．(改为否定句)

________　________ the dog at 7 a. m.．

按要求完成句子。

You should walk your dog once a week．(对划线部分提问)

_______　________　________ you ________ your dog?