Tìm lỗi sai , sửa và giải thích :

1, She is the elder among the 3 children , so she has to cook when her 

                     A                                  B                        C

parents are away

                      D

2, About 2 million women remain illiterate in a world, mostly in developing 

        A                                     B                       C                                D

countries

3, The gravity of the earth is too strong that no one can jump up to 3 meters

                A                               B                         C        D

4, The kids are interested in / to play computer games in their free time 

                    A               B              C                                        D

Tìm lỗi sai và sửa lại sao cho đúng, giải thích giúp mik luôn nha mn(mấy từ trong ngoặc là 1 trong những từ sai nha)

Many of my students enjoy to surf the web in their free time. (many, to surf, in, free time)

Tell me what is wrong for doing this job. (tell me, is wrong, doing, this job)

Printing was invented by the Chinese. (printing, was invented, by, chinese)

The number of the books in the library have risen to over five million. (number of book, in, have risen, to)

Mark the letter A, B, C, or D on your answer sheet to indicate the sentence that best combines each pair of sentences in the following questions.
I never received the letter. It was sent to the wrong address.

A. Since it was sent to the wrong address, I have never received the letter.

B. I never received the letter because it was sent to the wrong address.

C. I never received the letter because of sending to the wrong address.

D. Sent to wrong address, I never received the letter.