—Which of the three optional courses did you like best,Joe?—To tell you the truth,I didn't like ________ of them.
Don’t have the children playing _____ in the sun . It’s ______ hot today.
She is an excellent student in our class, and she always herself in her studies.
They work day and night; however, _______ of the money they make goes to their so-called eldest brother.
Jack, try to learn some relaxation exercises and do them ______ you feel stressed.
.--What are your parents? --My father is a teacher, and my mother is _________.