30.The coach, because of the driver’s carelessness, was __________ and crashed over the cliff on such a cold December morning.
He finds it hard to keep _____ with the change of society if he stops learning.
If you don’t go there, ______.
She is already 18 years old, but she _____ as if she were still a little girl.
The time has come ______ we can make extensive use of nuclear energy.
Your performance in the driving test didn't reach the required standard—____, you failed.