问题

People are puzzled _____ they read the book.

A:the first time
B:at the first time
C:for the first time
D:at first

正确答案是：

同类题型

Willie will learnswimming, no matter how much it ____.

The man who thought of ______a gas engine _____ wheels was the inventor of the automobiles

How do you find his advice? —-What he said sounded _____, I think.

Not everybody agrees to the plan. Some support it, while I am one of opposed to it.

I’m sorry, I ________ have been so rude to you that way.—Forget it, but I was a bit out of control yesterday.