— You may find the key to the maths problem on page 107.
— Ah, it’s so simple. I wonder why I_________of that.
| A．hadn’t thought | B．haven’t thought | C．didn’t think | D．wasn’t thinking |
相关试题
一Would you mind me keeping the book for another two weeks?
—__________．I have finished it anyway.
| A．It depends | B．You’re welcome | C．No problem | D．Yes, please. |
Mr. Smith owns——collection of coins than anyone else I have ever met．
| A．1arger | B．a larger | C．the larger | D．1arge |
. _______ myself to my study, I would be sitting in a comfortable office now.
| A．If I devoted | B．Should I devote | C．Would I devote | D．Had I devoted |
Sunset at Mount Huangshan is a beautiful scene, _______ I’ll never forget.
| A．one | B．it | C．what | D．that |
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