选择题：Don’t ( ) to let me know if there’s anything I can

题目内容：

Don’t ( ) to let me know if there’s anything I can do for you. A A.hesitate
B B.reject
C C.puzzle
D D.thrill

参考答案：

The old told me that it was no use thinking too mu

The old told me that it was no use thinking too much about one’s _____ youth.A A

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Our company has made a with a foreign automobile company to buy 500 cars.A A.