Catherine, the alarm clock for 6 o’clock, or you would oversleep and be late for the exam.
It’s ______ difficult to draw the boy’s attention to his lesson.
It was just a week ago________ an earthquake happened in Taiwan.
He is a well-known singer, but he is ______an actor.
The prize will go to the writer ________ story is most meaningful.
This is my workmate ,Mr. zhou , but he ________ in New York for 10 years.