来自李怀恩的问题
【Thebuilding____bytheendofnextmonthwillcontainthelab.A.beingcompletedB.hasbeencompletedC.tobecompletedD.tohavecompleted】
Thebuilding____bytheendofnextmonthwillcontainthelab.
A.beingcompleted B.hasbeencompleted
C.tobecompleted D.tohavecompleted
