It a Saturday afternoon in May ______ Margaret could arrange for me to meet her elder sister.
Your cousin is said ____ a new computer programme recently, but do you know when he will finish it?
You are certain to live your dream ____ you make great efforts and lay emphasis on improvements in efficiency.
While large numbers of residents in this area ______ the A/H1N1 flu, very few suffered death.
He kept thinking of the question whether it was ____ for his father to change the habit of a life time in such a short time.
—When did your cousin begin to show his interest in medicine?—It was a Saturday ___ she noticed her uncle experimenting on a frog in his lab.