A:or
B:a
C:thu
D:Yet
—Yes, that might ____ why he didn't do well in the test.
白天,我们在汽车内通过车窗玻璃能看到车外的景物;晚上,打开车内灯时,在车内通过车窗玻璃能看到车内的乘客,下列说法正确的是( )