It’s a big task I don’t think he_____can finish it before 6 pm[ ]

In many countries, some scientists are already _______ research in order to produce a cloned human baby.

The pretty girl is known_______ the public_______a little film star_______ her excellent performance in a film

下列句子中的“以”字含义和用法相同的一项是 ①去以六月息者也　②以五百岁为春　③耕植不足以自给 ④奚以知其然也　⑤问征夫以前路　 ⑥猥以微贱　 ⑦园日涉以成趣 　⑧舟遥遥以轻飏

My teacher asked me if I was worried about the test and I said “No”. But I was.