The last paragraph is about how to teach a teenager ______.
A. to use the phone in a sensible way B. to pay for his own telephone
C. to share the phone with friends D. to answer the phone quickly
正确答案:A
The last paragraph is about how to teach a teenager ______.
A. to use the phone in a sensible way B. to pay for his own telephone
C. to share the phone with friends D. to answer the phone quickly
正确答案:A