. Helen has picked up French and can speak fluently after a short stay with her aunt in Paris.
Students ________ remain in their seats until all the papers have been collected.
—Did Ann fail in English?—She ________. Don't you notice that she looks depressed?
I wrote a letter to John for his help during my high school years,without which I ________ the college entrance exam.
________ me what you wanted to know, I should not have wasted my time talking so much with you.
Every time she was in trouble, she went to him for help, as he said he ________ do anything for her.