By the time I got back to school, the bell______.

John is the tallest boy in the class, _______ according to himself. [ ]

urged Malaysia to continue providing more “thorough and correct information” about missing Malaysia Airlines flight MH370, after Malaysian Prime Minister claimed the plane was off course.

With two sons ______ in Afghanistan, John and Susie Mayes are working extra hard this year to make sure their grandchildren have a great Christmas.

Every possible means ______ to prevent the air pollution, but the sky is still not clear.