The new classroom will be constructed this year, and a firm from Korea have been chosen to______the work.  
#82725
A
assign
B
provide
C
undertake
D
settle
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–When did the concert_____?---Oh, two days ago.
#77192
A
happened
B
take place
C
hold
D
start
The travel costs ____ 2,000 dollars.
#77060
A
reach as many as
B
are added up to
C
come to
D
add up