Robert is said ___________ abroad, but I don’t know what country he studied in .
It is______ of him to set his aim high but do little, so he is always leaving things undone.
— Do you think it's a good idea to make friends with your students?—________, I do.I think it's a great idea.
Mary couldn’t________ the terrible working conditions in that factory and resigned last week.
Some passers-by witnessed the car accident ______ five passengers were killed, a baby included.
— Why do you do volunteer work in the North—West?— I_____ to improve the lives of the children there through my efforts.