Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct word or phrase that best fits each of the numbered blanks.

  Many parents believe that they should begin to teach their children to read when they are slightly more than toddlers. This is fine if the child shows a real interest but forcing a child could be counter­productive if she isn't ready. Wise parents will have a (23) __________ attitude and take the lead from their child. What they should provide is a selection of (24) _________ toys, books and other activities. Nowadays there is plenty of good material available for young children, and of course, seeing plenty of books in use about the house will also encourage them to read.

  Of course, books are no longer the only source of stories and information. There is also a huge range

of videos, (25) __________ can reinforce and extend the pleasure a child finds in a book and are (26) _______ valuable in helping to increase vocabulary and concentration. Television gets a bad review as far as children are concerned, mainly because too many spend too much time watching programs not intended for their age group. Too many television programs induce an incurious, uncritical attitude that is going to make learning much more difficult. However, (27) ________ viewing of programs designed for young children can be useful. Just as adults enjoy reading a book after seeing it serialised on television, so children will pounce on books which feature their favourite television characters, and videos can add a new dimension to a story known from a book.

Điền vào số 26

A. properly

B. worthily

C. perfectly

D. equally

Hỗn hợp đồng số mol (số mol các chất trong hỗn hợp bằng nhau) nào sau đây tan hoàn toàn trong dung dịch HCl dư?

A.  Cu và Fe₃O₄.

B.  Cu và Al₂O₃.

C.  CuO và Ag

D. Cu và Fe

Khi cho từ từ dung dịch HNO₃ vào dung dịch phenol, thấy xuất hiện

A. bọt khí

B. kết tủa màu trắng

C. kết tủa màu vàng

D. dung dịch màu xanh

Cho m gam bột Fe vào bình đựng dung dịch HCl, thoát ra 2,24 lít khí H₂ (đktc). Thêm tiếp dung dịch AgNO₃ dư vào bình, thu được 52,46 gam chất rắn. Các phản ứng xảy ra hoàn toàn. Giá trị của m là:

A.  8,40 gam

B.  6,72 gam

C.  7,84 gam

D. 5,60 gam