II:Choose the word whose stress position is different from that of the others:
Câu 1:
A. open
B. happen
C. offer
D. begin
Câu 2:
A. difficulty
B. simplicity
C. discovery
D. commodity
Câu 3:
A. obligatory
B. geographical
C. international
D. undergraduate
A.
B.
C.
D.