The chief editor expressed his doubt _______senior people would enjoy reading such magazines .
______, I can spare no time for it now. I’ll have to finish my homework first.
Can you explain ______ that the medicine has for my illness?
--- I serve three meals every day and do almost everything for him, but he still lets me down.--- I’m afraid that’s ______ you are mistaken.
China’s winning the host of the Olympic was an exciting moment, ______ all Chinese will never forget.
Measures have been taken to prevent accidents, but much ______ for more improvement.