It suddenly to the teacher that he hadn’t left any assignments(作业) to his students.
The hospital is _______ tests to find out what’s wrong with the little boy.
If we work with a strong will, we can overcome any difficulty, _______ great it is.
You look tired. _______ working indoors you should go out for a walk.
Look, dark clouds are gathering. It is _______ to rain soon.
Father will not _______ us to use his recorder.