—It’s too hot.-Let’s open the windows to allow the air to.A. passB. crossC. circleD. ci

问题补充：

—It’s too hot.

---Let’s open the windows to allow the air to.

A. pass

B. cross

C. circle

D. circulate

答案：

A. pass

B. cross

C. circle

(答案→)D. circulate

解析：词义辨析。A通过；B交叉，横过；C盘旋,旋转;D循环,环行。结合句意可知D正确。句意：—天气太热了。—打开窗户让空气循环。