Read the following passage and answer the questions

Ballpoint pen is a pen that has, as its name says, ball at its point which rotates when dragged across the writing surface and leaves behind ink that comes from the reservoir of the pen. Ball at the point can be of different diameter and can be made of brass, steel, or tungsten carbide. It is today the most widespread writing instrument and has literally changed the way we write.

   Trying to invent a pen which can write on leather, a tanner John J. Loud invented the first ballpoint pen and patented it in 1888 in America. This pen had a small steel ball which was placed so it could not fall out nor fall in but it still could rotate freely. This invention was not commercially viable and could not be used for writing. Because of that patent lapsed in time.

Who invented the first ballpoint pen?

Read the following passage and answer the questions

Ballpoint pen is a pen that has, as its name says, ball at its point which rotates when dragged across the writing surface and leaves behind ink that comes from the reservoir of the pen. Ball at the point can be of different diameter and can be made of brass, steel, or tungsten carbide. It is today the most widespread writing instrument and has literally changed the way we write.

   Trying to invent a pen which can write on leather, a tanner John J. Loud invented the first ballpoint pen and patented it in 1888 in America. This pen had a small steel ball which was placed so it could not fall out nor fall in but it still could rotate freely. This invention was not commercially viable and could not be used for writing. Because of that patent lapsed in time.

Where does the ink come from?

Read the following passage and answer the questions

Ballpoint pen is a pen that has, as its name says, ball at its point which rotates when dragged across the writing surface and leaves behind ink that comes from the reservoir of the pen. Ball at the point can be of different diameter and can be made of brass, steel, or tungsten carbide. It is today the most widespread writing instrument and has literally changed the way we write.

   Trying to invent a pen which can write on leather, a tanner John J. Loud invented the first ballpoint pen and patented it in 1888 in America. This pen had a small steel ball which was placed so it could not fall out nor fall in but it still could rotate freely. This invention was not commercially viable and could not be used for writing. Because of that patent lapsed in time.

What can ball at the point be made of?

Read the following passage and answer the questions

Ballpoint pen is a pen that has, as its name says, ball at its point which rotates when dragged across the writing surface and leaves behind ink that comes from the reservoir of the pen. Ball at the point can be of different diameter and can be made of brass, steel, or tungsten carbide. It is today the most widespread writing instrument and has literally changed the way we write.

   Trying to invent a pen which can write on leather, a tanner John J. Loud invented the first ballpoint pen and patented it in 1888 in America. This pen had a small steel ball which was placed so it could not fall out nor fall in but it still could rotate freely. This invention was not commercially viable and could not be used for writing. Because of that patent lapsed in time.

Was this invention commercially viable?

Read the following passage and answer the questions
   Ballpoint pen is a pen that has, as its name says, ball at its point which rotates
when dragged across the writing surface and leaves behind ink that comes from
the reservoir of the pen. Ball at the point can be of different diameter and can be
made of brass, steel, or tungsten carbide. It is today the most widespread writing
instrument and has literally changed the way we write.
   Trying to invent a pen which can write on leather, a tanner John J. Loud
invented the first ballpoint pen and patented it in 1888 in America. This pen had a
small steel ball which was placed so it could not fall out nor fall in but it still
could rotate freely. This invention was not commercially viable and could not be
used for writing. Because of that patent lapsed in time.
1. Where does the ink come from?

________________________________________________
2. What can ball at the point be made of?
________________________________________________
3. Who invented the first ballpoint pen?
________________________________________________
4. Was this invention commercially viable?
________________________________________________

D. WRITING
Complete the second sentence so that it has the same meaning to the first
1. Do you mind if I go out with my friends at night?
Would you mind if __________________________.
2. “Is Ha Long Bay a wonder of the world?” Ann said to me.
Ann asked_________________________________.
3. They decorated their house for the Tet holiday last weekend.
Their house________________________________.
4. Let’s go shopping.
Why don’t we ______________________________?

Tất cả các bạn học sinh ở trong lớp đều có ít nhất 1 chiếc bút, và nhiều nhất là 2. Các bạn cùng nhau viết số loại bút mà mình có. Ba bạn nhỏ, mỗi bạn có 1 bút mực và 1 bút chì. Bốn bạn nhỏ, mỗi bạn có 1 bút bi và 1 bút mực. Không có bạn nhỏ nào có 2 bút bi.Tổng cộng, cả lớp có 10 bút bi, 8 bút mực, và 4 bút chì. Hãy cho biết, có bao nhiêu bạn nhỏ ở trong lớp?

(A) 16

(B) 18

(C) 15

(D) 17