-- Who do you think ___ the book here? --- It may be John. He was sitting here all the morning.
---I’m sorry! I would have taken him to hospital if I had known he was seriously ill.--- But ______ .
--- Are you going to see The Flowers of War by Zhang Yimou?--- _______It’s said to be too good a film to miss.
No matter ______ the CRH accident in Wenzhou, it had and will have much warning significance.
It has been announced that all the students ____ put on masks before going to school in case they are infected with SARS virus.
—Have you been to the Great Wall?—Perhaps not in my memory. ________, it might have been during my early childhood.