-- I am going to Sidney for further studies next month.-- That's fantastic. Can you keep emailing me ______ you are there?
Scientists are convinced___the positive effect of laughter___physical and mental health.()
Don’t take too much of the medicine;it does you more harm than good if you______.
—Will you join us in the game? —Thank you,_______
He was down with the flu, and ____ couldn’t come to the party.
At last he chanced to sail back towards the place _____ he had started.