问题
选择题
When I got on the bus,I_____I had left my wallet at home.
A.was realizing
B.realized
C.have realized
D.would realize
答案
答案:B
考查时态。本句的时间状语是When I got on the bus,这是一个过去时的时间状语,所以B正确。句意:当我上车的时候,我发现我把钱包忘记在家里了。