1.Jake,don't be absent-minded.(把注意力集中到)your study.
2.As we can see,our project is now well(顺利进行着).
3.the training center was set up years ago and so far it (已配备了)a lot of modern technical equipment.
4.Most matter exists in the universe (以三种状态现):solid,liquid and gas.
5.Those who(愿意)attend the lecture,please sign your names after class.
參考答案:Jake,don't be absent-minded.(focus your attention on)your study.
As we can see,our project is now well(doing).
the training center was set up years ago and so far it (has already prepared )a lot of modern technical equipment.
Most matter exists in the universe (in three forms):solid,liquid and gas.
Those who(will)attend the lecture,please sign your names after class
