What are you doing, Jack?—I’m looking for some information about the event ________ attracts all the people’s attention.

The man often works late at night, sometimes _____ 2 am.[ ]

Mary, what do you want, coffee or milk ?— ___________. I don’t feel like drinking anything now, Mum.

Modern science and technology has ___ communication between people far apart.

_______ does Tom drink coffee?一Once a week．