I wonder how he could __________ not handing in his maths exercises yesterday, for his maths teacher is always strict with his students.
— Hello, may I have an appointment with the doctor? — ___.
Now a lot of new technologies can ___ problems in industry.
The doctor advised her to eat more bean products ____ meat which might be harmful to her heart.
— May I speak to Mr Smith? — I am afraid not. He is at a meeting now. It’s not ___.
No sooner ___ down on bed ___ the telephone rang.