When does your plane take off?—At 3: 00 p. m. tomorrow. I’ve just called the airport to __________ it. [ ]

__ these brochures among the touristsbefore you leave, will you

____you had worked hard, you would have easily passed the final test.

Leaves are found _______ all kinds of trees, but they differ greatly ______ size and shape.[ ]

It was not until she had arrived home _______ her appointment with the doctor.