—Why was your class so lively,Mr.Li?
—Oh,my students________in groups about the coming school trip.
A.discuss | B.are disclassing | C.were discussing | D.have discussed |
—Why was your class so lively,Mr.Li?
—Oh,my students________in groups about the coming school trip.
A.discuss | B.are disclassing | C.were discussing | D.have discussed |