Choose the word that has the underlined part pronounced differently from the rest:
low                power                  allow                however
A. low                
B. power                  
C. allow               
D.  however

Find a mistake in the four underlined parts of the sentence and correct it:
It was we that the guide showed round the ancient town.
A. was
B. we
C. guide
D. ancient town

Find a mistake in the four underlined parts of the sentence and correct it:
The news are on TV soon.
A. The news
B. are
C. on
D. soon

Choose the best answer for the following sentence:
We don't want anybody __________ that we are here 
A. to know           
B. know
C. knows
D. knowing

Find a mistake in the four underlined parts of the sentence and correct it:
My teachers congratulated me for my success.
A. teachers
B. congratulated
C. for
D. success

Choose the best answer for the following sentence:
There __________ a lot of fruit and drinks at the party yesterday.
A.  is        
B. are          
C. was          
D. were

Choose the correct sentence which is built from the words and phrases given:
she / admitted / too / fast / drive / through / the / town /.
A. She admitted drive too fast through the town.
B. She admitted driving too fast through the town.
C. She admitted to drive too fast through the town.
D. She admitted drove too fast through the town.

Tìm tất cả các giá trị của tham số $a$ để$\displaystyle L=\lim \frac{5{{n}^{2}}-3a{{n}^{4}}}{\left( 1-a \right){{n}^{4}}+2n+1}>0.$ 
A. $\displaystyle a\le 0;\,a\ge 1.$ 
B. $\displaystyle 0<a<1.$ 
C. $\displaystyle a<0;\,\,a>1.$ 
D. $0\le a<1.$

A.
B.
C.
D.

Cho f(x) = anxn + an-1xn-1 + ... + a1x + a0 với an ≠ 0 , (n ∈ N*). Khẳng định đúng là
A.
B.
C.
D.