Choose the best answer A, B, C or D to compete the following passage.
 Lunar New Year, or Tet, is Vietnam’s main (21)______ It is the grandest and most (22)______ occasion in the year which falls sometime between 19th January and 20th February on the Western calendar.
 On the days of Tet, everyone tries to be nice and (23)______ to each other. People believe that what they do (24)______ the first day of the year will influence their luck during the whole year. Thus, only positive comments should be (25)______.
(22)______
A.big                   
B.important
C.boring 
D.importance

When we came, he .................... TV
A.watched
B.is watching
C.was watching
D.watches

Choose the best answer (A, B, C or D) that best completes each sentence.
The cat ……………. all day.
A.hasn’t been fed  
B.doesn’t feed    
C.isn’t fed    
D.wasn’t fed

Choose the best answer (A, B, C or D) that best completes each sentence.
John couldn’t get into the house because he ………… his key.
A.has lost
B.had lost      
C.was lost
D.loses

Pick out the word which is stressed differently from the others.

A.voluntary         
B.apologise
C.competitor 
D.illiterate

Choose the best answer A, B, C or D for each sentence
By the end of this week, Valentine _______ and _______.
A.comes-goes 
B.would come-go 
C.will come-go 
D.will have come-gone

Choose the best answer A, B, C or D for each sentence
She noticed a marked _______ in the children on her second visit.
A.differ 
B.difference 
C.different 
D.differently

Select the synonym of the following bold and underlined word in each sentence in the unit
It is an electric store which manages large collections of data.
A.handles                               
B.works                      
C.drives                      
D.pilots

Choose the word whose main stress is placed differently from the others in each group

A.magazine 
B.collection 
C.performer 
D.invention

Americans usually offer expensive gifts to their mothers on Mother's Day.
A.F
B.T
C.
D.