Mark the letter A, B, C, or D on your answer sheet to indicate the option that best completes each of the following exchanges from 47 to 48.

Chau and Phuong bumped into each other after their graduation three years ago.

Chau: "Hi! Phuong. How have you been?” Phuong: “_______”|

A. I've been to Beijing recently. 

B. Badly. And how are you? 

C. Oh, I've done a lot of things 

D. Oh, pretty good. And you? 

Kim loại Al không phản ứng với chất nào sau đây?

A.  Fe₂O₃.

B. MgO.

C. FeCl₃ trong H₂O.

D. NaOH trong H₂O.