题目内容：

完成句子  按所给的汉语，用英语完成下列句子。

1.美国作家马克.吐温对写作确实有天赋，作为一名公众演说家他也很出名。

The American writer Mark Twain ________________________ writing and was also famous as a public speaker.

2.在最近的亚洲杯上，这名出色的球员踢得很好以至于吸引了我们的注意。

The great player played so well _____________________________ in the latest Asian Cup.

3.这对老夫妇在周末宁愿给朋友发短信也不愿在网上聊天。

The elderly couple ________________________ their friends than chat online at weekends.

4.如果你不独立完成作业，那就是浪费时间。

It is actually ________________________ you do the homework by yourself.

5.他们想知道可以使用什么方法来提防吸入过多的PM2.5颗粒。

They wonder what method can                                      taking in too much  PM 2.5 particles (颗粒) .

6.我曾怀疑那位作曲家写的乐曲是否值得听。

I once doubted whether the music written by the composer _______________________.