1.我们应该尽力去保护环境. We should ____________to protect the environm

1.我们应该尽力去保护环境. We should ____________to protect the environment.
2.昨天的会上学生们问了很多问题.
Many questions _________by students at yesterday＇s meeting.
3.新加坡是一个讲英语的国家,所以它也是一个练习英语的好地方.
Singapore is an English-speaking country,so it＇s also a good place to ________.
4.中国人民正在努力赶上发达国家.
The Chinese people are working hard to ____________developed countries.

1. try our best
2.were asked
3.practice English
4.keep up with

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