Europe has achieved more in controlling the AIDS virus than Asia in the past ten years, _________ the number of people infected with the virus is going up sharply.
I didn’t know that he was a cheat, or else I ________________ him.
After starting work, Cao spent his evenings _____ in his books and was eventually admitted to a secondary technical school.
Provide your doctor with a detailed medical history ______ he can give you the accurate treatment.
Though ______ to see us, the professor gave us a warm welcome.
Most people go to the theatre not to see a play ______ plot is complicated, but to listen to brilliant dialogues between actors.