完成句子

你这种理论的根据是什么？

What are you ________ this theory ________?

完成句子

目前我们没有进一步的消息。

We do not have any more information ________　________　________　________．

完成句子

他送给我这支漂亮的钢笔作为生日礼物。

He gave me this nice pen as a ________　________．

完成句子

有200人出席会议。

There were 200 people ________　________ the meeting．

同义句转换

A：Did he attend yesterday’s meeting?

B：Was he ________　________ yesterday’s meeting?

同义句转换

A：At present she’s working abroad．

B：________ she’s working abroad．

同义句转换

A：I’m afraid something urgent has come up．

B：I’m afraid something urgent has ________．

同义句转换

A：They raised the subject in the conversation．

B：They ________　________　________ the subject in the conversation．

同义句转换

A：The subject was raised in the conversation．

B：The subject ________　________ in the conversation．

完成句子

教授着手研究当地居民的生活习惯。

The professor set to study ________　________　________　________　________．