Ms James has been a teacher_____ 1998. [ ]

We’ll be back for our school’s anniversary ceremony. —I see. That means you’ll have a get-together with your classmates in years.

It is known to all that every minute ____ full use of____ the lessons will benefit students a great deal．

Is the blue ruler _______? —No. _______ ruler is red.

_____ hours of sports do you do every week?—Six hours.[ ]