Tile Chinese government plans to buy at least ______ new models of Boeing’s 737 aircraft.

A．China’s going to reduce the airliners to be purchased from Boeing
B．China’s plan to buy Boeing jetliners has been suspended because of political tension between Washington and Beijing
C．China wants to increase its buying
D．China will move on with its purchasing plan

A．m. ______ in the United States every year.A. on the last Sunday of AprilB. on the first Sunday of AprilC. on the last Sunday of MayD. on the first Sunday of May