Chia động từ trong ngoặc

1. You shouldn’t leave your laboratory ......................... after your experiments, (tidy)
2. The scientists grew ......................... with the bad results of his scientific research. (patient)
3. It is ......................... for you to know everything in the field of science, (possible)
4. Latest developments in science help us find out more about......................... stars. (known)
5. The researcher was ......................... about announcing his scientific discovery. (decided)
6. It is ......................... that fossil fuel will never run out. (probable)
7. They are trying to improve the new device because it is still ......................... (perfect)