—You may find the key to the math problem on page 107.—Ah, it’s so simple. I wonder why I _____ of that.
#102292
A
hadn’t thought
B
haven’t thought
C
didn’t think
D
wasn’t thinking
推荐题目
When I got on the bus,I_____I had left my wallet at home.
#102653
A
was realizing
B
realized
C
have realized
D
would realize