Is that the reason ________he explained to all at the meeting for his carelessness in his work? Actually we think he is a man who is hard ________ himself especially in work.

Is this school _____ my father studied in when he was a child? [ ]

n go to see your sick granny, but you mustn’tstay there _____ visiting hours

Why are you looking so worried? —I sent an email to my son in America last week, but no reply ________

1This is my sister.name is Linda.