---Is doing morning        a good habit?  ----Yes, it is.

— You don’t look well, Don! You’d better see your doctor.— I ________, but he said there was nothing wrong.

Armstrong became interested in _______ ever since he took his first _______ at the age of six.

There_______ still some milk in the fridge. We don't need to buy any.

—What ______ the number of the students in your school?—About two thousand. A number of them _____from England.