根据所给中文和句意，填入正确的单词。

In winter, the bird flu(禽流感)________(病毒)is easier to spread．So we should be more careful．

根据所给中文和句意，填入正确的单词。

Robots can help Mum do the ________(洗衣活)when there are dirty clothes．

根据所给中文和句意，填入正确的单词。

In fact, the eyes of the robot are ________(照相机)．

根据句意及首字母填空。

They will have a d________ about the charity show．

根据句意及首字母填空。

Betty has an a________ of learning English because she has an uncle working in England．

根据句意及首字母填空。

A small p________ of the students of their school are from America．

根据句意及首字母填空。

My uncle c________ his business very successfully．

根据句意及首字母填空。

According to a recent s________, there are more than 2.5 million workers in Shanghai．

用正确的关系代词填空。

You can't miss the last chance ________ is very important to you．

用正确的关系代词填空。

Which is the programme ________ attracts the children most?