He found it increasingly difficult to read, ______ his eyesight was beginning to fail.A. though B. for C. but D so
These chairs may look good, but they’re very un-comfortable _____.
Do you prefer_____when your boss takes an interest in your personal life?
When the clock ________ 11, I was about to leave for the supermarket.
Famous physicists from all over the world came to the US to ______the 100th anniversary of Albert Einstein’s birth.
So______that many parents are too worried to let their children travel alone at the beginning of the new term.