A.restaurant
B.assistance
C.usually
D.otherwise

A.obvious
B.probably
C.finally
D.annoying

When I realized I was wrong. I apologized to him about my mistake.
A.realized
B.to
C.about
D.mistake

A.physical
B.achievement
C.government
D.national

A.conference
B.lecturer
C.reference
D.researcher

A.requirement
B.condition
C.example
D.previous

A.interviewee
B.refugee
C.understand
D.referee

A.mathematics
B.engineering
C.scientific
D.laboratory

A.considerable
B.information
C.librarian
D.technician

A.graduation
B.understanding
C.international
D.accommodation