M=4/3+4/15+4/35+...+4/(2n+1)*(2n+3)

Chứng minh rằng Tức cảnh Pác Bó là một bài tơ tứ tuyệt bình dị pha giọng vui đùa, cho thấy tinh thần lạc quan, phong thái ung dung của bác hồ trong cuộc sống cách mạng đầy gian khổ ở Pác Bó. Với Người, làm cách mạng và sống hòa hợp với thiên nhiên là một niềm vui lớn.

1. look at the boy! he (fall) ______

2. My grandmother said in that region, the local language (speak) ______ for a hundred years

3. The lady said the train (depart) ______ at 8A.M the following day

4. We plan (leave) _____ tomorrow afternoon

5. If we (invest) _______ more in space science, we (get) _____ a lot more benefits

4. She is bored _____ getting up early.
 
A.
with
B.
in
C.
of
D.
to
5. Would you like me to get you something to drink? - ______
 
A.
That would be nice
B.
No, I’m sorry
C.
That’s too bad
D.
My pleasure
 
6. English is the _____ language on one- fifth of the land area of the world.
 
A.
office
B.
official
C.
officer
D.
officially
7. It's an hour since he ......... , so he must be at the office now.
 
A.
has left
B.
left
C.
was leaving
D.
is leaving
8. 14. I usually go to work by bus, but ________ and then I use my motorbike.
 
A.
again
B.
Once
C.
now
D.
ever
9. Of my parents, my father is _________________.
 
A.
the stricter
B.
the strictest
C.
stricter
D.
strict
10. "What can I get for you?".  ______________ .
 
A.
All right
B.
I'm afraid not
C.
I hope so
D.
Yes, please
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
I.        Choose the word whose underlined part is pronounced differently from the others.

1.
A.
think
B.
healthy
C.
thus
D.
ethnic
2.
A.
discussion
B.
revision
C.
attention
D.
admission
3.
A.
cease
B.
chase
C.
increase
D.
raise
4.
A.
although
B.
enough
C.
laugh
D.
cough
5.
A.
mute
B.
junior
C.
music
D.
humor
6.
A.
who
B.
where
C.
which
D.
when
7.
A.
send
B.
tent
C.
rely
D.
tend
8.
A.
lock
B.
shock
C.
block
D.
program
9.
A.
talked
B.
passed
C.
dialed
D.
stopped
10.
A.
comb
B.
climb
C.
dumb
D.
blond