Our monitor didn’t see all the students, because was ill and didn’t come to school today.
—Allen, please tell me what you are going to be when you grow up. —To be______ engineer just like you.
—Did you know ______ just now? —Their plane didn't take off on time because of the thick fog.
Do you know where Jimmy is? I ______ him for such a long time.
—How did the writer win the prize? —He worked day and night for two years. ______ . he succeeded.
—Which of the two new books do you like better? —I like ______ of them, because they're not useful to me.