The belief that the children of working mothers usually suffer isby most scientists

______fashions differ from country to country may reflect the culture difference from one aspect.

— Do you know our town at all?— No, this is the first time I ______ here. [ ]

Just as Professor Scotti often ________ it, success is ninetynine percent mental attitude. [ ]

Why don’t you go to visit the Great Wall with us—Because I _______ there many times.