-----I think you us an explanation. -----I will prove what I have done is right and I mean no harm.
The flu is believed by viruses that like to reproduce in the cells inside the human nose and throat.
His mother suggested he ______ to see the doctor, because his pale face suggested he ____ ill.
What I need is _____ book that contains ______ ABC of oil painting.
What a pity! I missed meeting my boss at the airport because my car was ______ in the traffic jam.
His physical disability makes _____ rather difficult for him to find a good job.