(A) It is a good idea (B) to be careful in buying (C) or purchasing magazines (D) from salespersons who may come to your door.

Câu hỏi :

(A) It is a good idea (B) to be careful in buying (C) or purchasing magazines (D) from salespersons who may come to your door.

A It is

B to be

C or purchasing

D from salespersons

* Đáp án

C

* Hướng dẫn giải

Phương pháp giải:

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