Choose the best answer A, B, C, or D to complete each of the following sentences.

12.What did Mi say about having a robot to do homework? - ____.

A.She says it was helpful B. She said it was helpful. C. She said it will do all the boring chores D. She says it would do all the boring chores

13.What do you mean by "as bright as a button"? - ____.

A,Very stupid B. Hard as a button    C. Smart   D. Very ugly                                                                             14._____-It’s convenient and still efficient enough for me.

A,What is online learning? B. Why is online learning popular?   C. What do  you think about online learning?  D. How convenient is online learning?

,What do you think of nano -learning ? _____

A,Good news for us!   B. It makes my learning effortless   C. It sounds boring   D. It provides a large amount of information

giải thích chi tiết đáp án cho mk vs ạ