- A.they realized
- B.did they realize
- C.they did realize
- D.realized they
- A.but
- B.and
- C.so
- D.or
- A.were
- B.was
- C.is
- D.being
- A.during which
- B.during that
- C.of which
- D.by which
- A.obviously
- B.surprisingly
- C.normally
- D.particularly
- A.in
- B.by
- C.at
- D.under
- A.which
- B.that
- C.whose
- D.whom
- A.to be stolen
- B.stolen
- C.to steal
- D.stealing
- A.to sell
- B.to be selling
- C.selling
- D.sell
- A.office big modem concrete
- B.big modem concrete office
- C.concrete big modem office
- D.big concrete modem office
- A.to agree
- B.agreeing
- C.agree
- D.agreed
- A.don’t need
- B.needs not to
- C.doesn’t need to
- D.needs not
- A.must
- B.can
- C.may
- D.will
- A.If it is to
- B.Were it to
- C.Be it to
- D.To
- A.challenged
- B.to be challenged
- C.was challenged
- D.had challenged
- A.His some
- B.His many
- C.Many his
- D.Some his
- A.declines
- B.declined
- C.declining
- D.has declined
- A.had been
- B.were to be
- C.have been
- D.are being
- A.any
- B.another
- C.every
- D.all
- A.has
- B.had
- C.have
- D.having