将下面句子变为被动语态，每空一词。

Did they build a bridge here a year ago?

________ a bridge ________ here by them a year ago?

将下面句子变为被动语态，每空一词。

I have given this book to the library．

This book ________　________　________ to the library．

将下面句子变为被动语态，每空一词。

The children will sing an English song．

An English song ________　________　________ by the children．

将下面句子变为被动语态，每空一词。

They produce silk in Suzhou．

Silk ________　________ in Suzhou．

将下面句子变为被动语态，每空一词。

We can finish the work in two days．

The work ________　________　________ in two days．

按要求完成下面句子

The backpack belongs to Tom．(就划线部分提问)

________________________________

按要求完成下面句子

The CD might belong to John．(同义句)

________________________________

按要求完成下面句子

This book must be Lu’s．(改为否定句)

________________________________

句型转换

My cousin is twelve, I'm twelve, too．(同义句转换)

My cousin is ________　________　________　________ me．

句型转换

She spent one hundred dollars buying the bracelet．(同义句转换)

The bracelet ________　________ one hundred dollars．